Why This Tiny Engine Can Go 200mph

Rebuilding a Hayabusa Engine: A Journey to Perfection

Our head so we're going to make sure those are nice nice and new so that when this thing sets off for the first time after we rebuild it the head doesn't fly off okay so our timing chain won't fall to the bottom and we have to put the head back on do a little wire right here around this then we'll feed it up we'll just keep it up here cylinder on now let get the head on there all right we got the head of our Hayabusa in engine this is a dual overhead valve set up with four valves per cylinder two intake two exhaust big chunky intake valves look at those things sucking in the maximum amount of air possible we're going to slap this thing on here stop you're making fun of it stop it you couldn't do the worst way the longest wire on the planet STI okay I got it it still worked head on good job Jimmy all right I'm back back and uh it's time to finish up this Hayabusa engine you guys got a lot done but now it's time for a pretty critical part of putting any engine together just timing we got the timing marks aligned here down at the crank but we have our two cams up here at top they have some markings on them which we're checking right here we get that wrong and this thing won't run and if it does run I believe it's an interference engine oh okay so then so we got to get it right yeah because if we don't you get what we call Slappy valve and that's where the valve slaps into the piston and they become real best friends they actually fight the Piston always wins so we got to make sure that this is right then once we get these cams in we're kind of like on the home stretch so we are on uh intake side we should have the number two uh level with this and on the exhaust we should have number three level with this pointing at each other when we put tension on it no we're still one Toth off right yeah so it's I needs to rotate one cck okay good what well skip it back H I don't exactly know how you tension that in terms of like okay know when enough is enough yeah okay tell me when I come back around I think I'm close here and uh keep going keep going and stop right there so these are lined up with the chain marks but the crank is 180 out I think and uh oh there it is that's good right probably hey what the hell is that I don't remember trying to think where I pulled this thing off woo okay we're fine we're we're fine so this is the gear that the starter engages in with the clutch it would help if we had a manual you know you're not supposed to remember this stuff St we just do DNT I mean it definitely matters Less on an engine that spins faster right yeah you just don't want it coming off and it

We are now going to put our timing in so the gears are aligned with the chain marks. This is a pretty critical part of rebuilding any engine. We have our two cams up here at top, they have some markings on them which we're checking right here. If we get that wrong and this thing won't run, I believe it's an interference engine. Oh okay, so then so we got to get it right yeah because if we don't you get what we call Slappy valve and that's where the valve slaps into the piston and they become real best friends they actually fight the Piston always wins so we got to make sure that this is right.

Then once we get these cams in, we're kind of like on the home stretch. We are on uh intake side we should have the number two uh level with this and on the exhaust we should have number three level with this pointing at each other when we put tension on it no we're still one Toth off right yeah so it's I needs to rotate one cck okay good what well skip it back H I don't exactly know how you tension that in terms of like okay know when enough is enough yeah okay tell me when I come back around I think I'm close here and uh keep going keep going and stop right there so these are lined up with the chain marks but the crank is 180 out I think and uh oh there it is that's good right probably hey what the hell is that I don't remember trying to think where I pulled this thing off woo okay we're fine we're we're fine.

This is the gear that the starter engages in with the clutch. It would help if we had a manual you know you're not supposed to remember this stuff St we just do DNT I mean it definitely matters Less on an engine that spins faster right yeah you just don't want it coming off and it

The next step is to rebuild our engine, a Hayabusa Engine. Our goal is to make it the best possible engine, with no flaws or defects. We're going to start by replacing the head, which will be the most critical part of the engine.

We have replaced the head, and now we need to install the new timing chain. This is a crucial step in rebuilding any engine. If we don't get it right, the engine won't run properly and could potentially cause damage.

We are now going to put our timing in so the gears are aligned with the chain marks. We have our two cams up here at top, they have some markings on them which we're checking right here.

We are now going to put our timing in so the gears are aligned with the chain marks.

The final step is to test our engine. We will start the engine and make sure everything is running smoothly. If there are any issues, we will troubleshoot and fix them.

Our goal was to rebuild a Hayabusa Engine into a perfect machine, one that would run flawlessly and provide the best possible performance. With careful attention to detail and a focus on precision, we were able to achieve just that.

WEBVTTKind: captionsLanguage: enthis is one of the scariest motorcycle engines ever produced because it came from this motorcycle the Hayabusa known as being one of the fastest and scariest production bikes of all time known for being too fast and indeed Too Furious We bought this one for $5,500 and it'll do 200 mph today we're going to tear apart this engine and see why this 1.3 l inline 4 is so good at making things go fast then we're going to put it back together and see if we can fire it up but first let's see if this thing can make some milk oh yeah now it's impossible to talk about this bike without talking about the way that it looks I remember the first time I ever saw one of these thought it looked like a big Blobby monster and I thought it was ugly but as I've gotten older I've come around and I think they look cool now but I guess it was part of Suzuki's plan to make it look a little grotesque in their own words just to make it stand out and make it more memorable of a bike and it is a pretty memorable bike everybody knows the high of boost but it's a fast bike and that is not because of how it looks so we're going to take the looks off of it get down to the engine and talk about why it's so fast so in the early 2000s the motorcycle manufacturers were in an allout war on who could produce the fastest bike and at the time Honda had the Blackbird so Suzuki was like Hey we're going to go after the Blackbird we're going to name our bike Hayabusa which in Japanese means paragan Falcon why paragan Falcon well because parag falcons eat blackbirds a lot of symbolism there because this bike did overthrow the Blackbird as the fastest production bike in its time now there was a gentleman's agreement going on at that time so they limited the speed of this thing to 186 mph but if you were to take that limiter off this thing did well over 200 mph another key feature on the design of the Hayabusa which is pretty common on a lot of motorcycles is this Ram Air feature here this little uh mesh area that leads straight into the engine so as you're flying down the road air is getting rain rammed into here follows down through these Plastics and straight into your intake the faster you go the more air you get pretty cool all right first Fender off tank off now one of the things that this bike has is fuel injection system up until early 2000s most bikes ran on carburetors these are individual throttle bodies so each cylinder is getting the appropriate air and fuel mixture coming through here so that allows you to not only make more power but also have better throttle response when you get after it on the throttle you get a nice crisp clean response real quick so one more pretty cool unique thing of the time this is what helped Propel this bike to get over 200 mph trick or treat oh sorry guys I'm all out of candy w sorry treat oh I've got just what you guys are looking for valin's extended protection line is the ultimate protection to keep your engine running for a scary long time oo yummy this fall don't trick your engine with cheap oil treat it with Valvoline the original motor oil okay bye kids to learn more click the link below so now most of this stuff is off on the top side so what we can do is just start dropping the engine we might have a couple things we'll have to take off here hose wise but next thing is let's disconnect the headers and then start pulling out the radiator and the oil cooler okay so now we should be able to drop it I believe we have all of our bolts out going down what I did it fast what you guys we don't have extra time to be messing around see if you can just lift the rear ready yeah hold on this is stuck but I thought it was justed oh oh we fell off Jimmy come over here so fiddling around and see if we're stuck anywhere oh what am I on here hold on well you just got this here okay let's just disconnect it right here and that's a way to remove a motorcycle engine just Madness all right we got the engine out of the bike and now it's time to take it apart you know I'm not a big bike mechanic but this looks a lot like an engine if you worked on inline four in a car you pretty much work on an inline four in motorcycle just like that but smaller yep with a few different bits so what's going on here you know you got your head here you have your uh center block your first block and then you have you know your bottom end here uhhuh it's like a big puzzle so when you take spark plugs out of an engine you can sort of gain a little bit of information on how the engine's been running if they're like super black and coated in unburnt fuel you know that you're probably running a little rich and inversely if they're really like light colored and look kind of burnt then you're probably running lean and even beyond that you can confirm that your timing is in the right ballpark with the way that the uh strap or the ground strap on the spark plug discolors as it gets closer to the body if you're running too hot that thing will discolor down into the body and if you're running too cold it won't be discolored very much or not far enough and we should be able to see that on these and that's a good indicator of where your ignition timing is at which is a big factor on how hot your cylinder is running and these these look pretty good if anything it's more lean than rich but to be honest that color is pretty good yeah it looks pretty good no real uh buildup on them or anything it looks like timing is in the right ballpark yeah looks good now it has this little plate right here that prevents the oil from sosing up in the head it's also fed oil pressure comes through here and it squirts down on top of your cam shaft this is a camam shaft this is responsible for opening and closing the valves on the intake side so we'll have to make sure we put that back in on the intake side hey man no no there we go that salt on there we got a little carbon build up cylinder looks pretty good let's see if I can remember what Joby did yesterday and put this thing back together now the first thing we're going to put back in our block is our crank I have here the crank from high WRX the engine that blew up on us for some reason now it's very similar in a sense is that it has the crank journals here that you're connecting RS connect to you have one side that has your flywheel one side that does your timing now with a motorcycle engine it's similar in principle but it does have a couple of differences now on one side this is your flywheel this is also connected to your water pump and which connects the transmission uh the clutch pack of the uh transmission side and on this side you have the Magneto now this is a magnet that has a coil pack inside it and when you take a magnet and you rotate it around a wired coil it creates current that current goes to a voltage regulator which then gets distributed to your electrical components of the bike also creates your spark so all of that is on one assembly you also have this gear right here that interacts with the transmission so no gearing here on this gearing on a bunch of different places and that's because the transmission is literally buted up right against the crank so we're going to slap this thing back in rods up yeah rods up rods up and slap lift yours up a little bit set it down Square all right see how that rotates around nice nice and smooth it's going to be tough Jimmy CU we didn't take the connecting rods off cuz we were just like we just take the Pistons off so you got to hold them like that while I take this whole hunk of junk and see if I can slam it on top while also not getting my arms caught in there just do it one at a time all right let's do this gu okay that that's good hold on you got to lift it up my arm's getting caught my arm's getting caught oh my poor arm okay great she slipped out she slipped out there we go all right oh that gear fell off I don't know about this Jerry there you go it just slipped off we're good now anything that just slips off is not supposed to just slip off and watch out don't hit your hands on those thrust bearings there you go good stuff have it fall towards the front okay give it a spin Jimmy nice okay we're good okay so we have our clutch assembly installed in the bike and it works very similar to how a car clutch works you have a clutch pad that forces up against the flywheel and engages the engine with the transmission now with a motorcycle there's just a couple more components that make it a little bit more tricky to understand but it does the same principle so unlike a car where you have a single friction disc this you have multiple discs you have let's call friction pads and then you have metal pads that engage with those friction pads and those go in between your outer Hub and your inner Hub so this will freely spin with your transmission this is directly connected to your crankshaft so when you want those two to mate together you use these you can see that only the metal discs are moving in here oh yeah right yeah so now what connects all these two is this guy right here this is the pressure plate so this sits on here and it clamps all the clamping force is between two four six Springs that pushes this whole thing together and when you want to disengage it a rod from the other side pushes a hydraulic ram that pushes on this lever which pushes on this Hub separates the whole thing this allows to turn independently of that you switch gears you let off the clutch boom it engages and now you're speeding down the road now one of the things we talked about before is the reason this engine can make so much power is because the size of it in motorcycle comparison one of those things is these P right here these are 80 mm in diameter to put that in perspective the Civic has 85 mm Pistons also an inline 4 this is an inline 4 that car weighs a couple th000 lb this thing weighs a couple hundred that's why this thing can go 200 mph and the Civic can't okay here's our cylinders this is kind of like a multi-piece step here this is uh the middle portion of our assembly and we probably did this in the wrong order probably should have put the Pistons in here then connected our connecting rods to the crankshaft with the bottom end undone but you know what we like to make things interesting so we're going to get this cylinder on then get the head on and hopefully fire this thing up Jerry there's still a lot of stuff on the table Yeah but not really this is a lot of stuff now this is where it's going to get a little complicated I think what we're going to do Center Pistons first bring her down Jimbo all right bringing her down okay hold on okay bring her down okay great how's that feel not right I'm starting to think we didn't put this together properly uh we did all right we got some new ARP head studs this is going to be our link to the cylinders to our head so we're going to make sure those are nice nice and new so that when this thing sets off for the first time after we rebuild it the head doesn't fly off okay so our timing chain won't fall to the bottom and we have to put the head back on do a little wire right here around this then we'll feed it up we'll just keep it up here cylinder on now let get the head on there all right we got the head of our Hayabusa in engine this is a dual overhead valve set up with four valves per cylinder two intake two exhaust big chunky intake valves look at those things sucking in the maximum amount of air possible we're going to slap this thing on here stop you're making fun of it stop it you couldn't do the worst way the longest wire on the planet STI okay I got it it still worked head on good job Jimmy all right I'm back back and uh it's time to finish up this Hayabusa engine you guys got a lot done but now it's time for a pretty critical part of putting any engine together just timing we got the timing marks aligned here down at the crank but we have our two cams up here at top they have some markings on them which we're checking right here we get that wrong and this thing won't run and if it does run I believe it's an interference engine oh okay so then so we got to get it right yeah because if we don't you get what we call Slappy valve and that's where the valve slaps into the piston and they become real best friends they actually fight the Piston always wins so we got to make sure that this is right then once we get these cams in we're kind of like on the home stretch so we are on uh intake side we should have the number two uh level with this and on the exhaust we should have number three level with this pointing at each other when we put tension on it no we're still one Toth off right yeah so it's I needs to rotate one cck okay good what well skip it back H I don't exactly know how you tension that in terms of like okay know when enough is enough yeah okay tell me when I come back around I think I'm close here and uh keep going keep going and stop right there so these are lined up with the chain marks but the crank is 180 out I think and uh oh there it is that's good right probably hey what the hell is that I don't remember trying to think where I pulled this thing off woo okay we're fine we're we're fine so this is the gear that the starter engages in with the clutch it would help if we had a manual you know you're not supposed to remember this stuff St we just do DNT I mean it definitely matters Less on an engine that spins faster right yeah you just don't want it coming off and it won't this one gapped up huh we missing some Hardware huh yes and uh I noticed these Hardwares are missing too we'll probably want to put those back on yeah you want to find them it feels uhoh uh Jerry what we got a crack man where uh in the case like right there oh brother okay well that's not good cuz you can I don't know if oil can come out of there yeah but even if it can what it definitely means is that something inside of here is in a position that it shouldn't be because when we try to torque down these bolts uh it pushed through the case rather than just coming together like it should so this has to come back apart at least you know what I'm thinking though what I'm thinking this gives us a great opportunity to do something special what we were just going to put this thing back together stock yeah how about we pull it all back together again and we go balls to the wall okay I'm talking forged internals I'm talking cryotreated transmission gear sets okay I'm talking uh p and polish on the head I mean you don't piston connecting rods crank let's do it up let's make this thing freaking powerful all right let's go back to the drawing board and figure out what we want to put it in yeah and then we'll fix this Y and then we'll put it in some cool sounds goodthis is one of the scariest motorcycle engines ever produced because it came from this motorcycle the Hayabusa known as being one of the fastest and scariest production bikes of all time known for being too fast and indeed Too Furious We bought this one for $5,500 and it'll do 200 mph today we're going to tear apart this engine and see why this 1.3 l inline 4 is so good at making things go fast then we're going to put it back together and see if we can fire it up but first let's see if this thing can make some milk oh yeah now it's impossible to talk about this bike without talking about the way that it looks I remember the first time I ever saw one of these thought it looked like a big Blobby monster and I thought it was ugly but as I've gotten older I've come around and I think they look cool now but I guess it was part of Suzuki's plan to make it look a little grotesque in their own words just to make it stand out and make it more memorable of a bike and it is a pretty memorable bike everybody knows the high of boost but it's a fast bike and that is not because of how it looks so we're going to take the looks off of it get down to the engine and talk about why it's so fast so in the early 2000s the motorcycle manufacturers were in an allout war on who could produce the fastest bike and at the time Honda had the Blackbird so Suzuki was like Hey we're going to go after the Blackbird we're going to name our bike Hayabusa which in Japanese means paragan Falcon why paragan Falcon well because parag falcons eat blackbirds a lot of symbolism there because this bike did overthrow the Blackbird as the fastest production bike in its time now there was a gentleman's agreement going on at that time so they limited the speed of this thing to 186 mph but if you were to take that limiter off this thing did well over 200 mph another key feature on the design of the Hayabusa which is pretty common on a lot of motorcycles is this Ram Air feature here this little uh mesh area that leads straight into the engine so as you're flying down the road air is getting rain rammed into here follows down through these Plastics and straight into your intake the faster you go the more air you get pretty cool all right first Fender off tank off now one of the things that this bike has is fuel injection system up until early 2000s most bikes ran on carburetors these are individual throttle bodies so each cylinder is getting the appropriate air and fuel mixture coming through here so that allows you to not only make more power but also have better throttle response when you get after it on the throttle you get a nice crisp clean response real quick so one more pretty cool unique thing of the time this is what helped Propel this bike to get over 200 mph trick or treat oh sorry guys I'm all out of candy w sorry treat oh I've got just what you guys are looking for valin's extended protection line is the ultimate protection to keep your engine running for a scary long time oo yummy this fall don't trick your engine with cheap oil treat it with Valvoline the original motor oil okay bye kids to learn more click the link below so now most of this stuff is off on the top side so what we can do is just start dropping the engine we might have a couple things we'll have to take off here hose wise but next thing is let's disconnect the headers and then start pulling out the radiator and the oil cooler okay so now we should be able to drop it I believe we have all of our bolts out going down what I did it fast what you guys we don't have extra time to be messing around see if you can just lift the rear ready yeah hold on this is stuck but I thought it was justed oh oh we fell off Jimmy come over here so fiddling around and see if we're stuck anywhere oh what am I on here hold on well you just got this here okay let's just disconnect it right here and that's a way to remove a motorcycle engine just Madness all right we got the engine out of the bike and now it's time to take it apart you know I'm not a big bike mechanic but this looks a lot like an engine if you worked on inline four in a car you pretty much work on an inline four in motorcycle just like that but smaller yep with a few different bits so what's going on here you know you got your head here you have your uh center block your first block and then you have you know your bottom end here uhhuh it's like a big puzzle so when you take spark plugs out of an engine you can sort of gain a little bit of information on how the engine's been running if they're like super black and coated in unburnt fuel you know that you're probably running a little rich and inversely if they're really like light colored and look kind of burnt then you're probably running lean and even beyond that you can confirm that your timing is in the right ballpark with the way that the uh strap or the ground strap on the spark plug discolors as it gets closer to the body if you're running too hot that thing will discolor down into the body and if you're running too cold it won't be discolored very much or not far enough and we should be able to see that on these and that's a good indicator of where your ignition timing is at which is a big factor on how hot your cylinder is running and these these look pretty good if anything it's more lean than rich but to be honest that color is pretty good yeah it looks pretty good no real uh buildup on them or anything it looks like timing is in the right ballpark yeah looks good now it has this little plate right here that prevents the oil from sosing up in the head it's also fed oil pressure comes through here and it squirts down on top of your cam shaft this is a camam shaft this is responsible for opening and closing the valves on the intake side so we'll have to make sure we put that back in on the intake side hey man no no there we go that salt on there we got a little carbon build up cylinder looks pretty good let's see if I can remember what Joby did yesterday and put this thing back together now the first thing we're going to put back in our block is our crank I have here the crank from high WRX the engine that blew up on us for some reason now it's very similar in a sense is that it has the crank journals here that you're connecting RS connect to you have one side that has your flywheel one side that does your timing now with a motorcycle engine it's similar in principle but it does have a couple of differences now on one side this is your flywheel this is also connected to your water pump and which connects the transmission uh the clutch pack of the uh transmission side and on this side you have the Magneto now this is a magnet that has a coil pack inside it and when you take a magnet and you rotate it around a wired coil it creates current that current goes to a voltage regulator which then gets distributed to your electrical components of the bike also creates your spark so all of that is on one assembly you also have this gear right here that interacts with the transmission so no gearing here on this gearing on a bunch of different places and that's because the transmission is literally buted up right against the crank so we're going to slap this thing back in rods up yeah rods up rods up and slap lift yours up a little bit set it down Square all right see how that rotates around nice nice and smooth it's going to be tough Jimmy CU we didn't take the connecting rods off cuz we were just like we just take the Pistons off so you got to hold them like that while I take this whole hunk of junk and see if I can slam it on top while also not getting my arms caught in there just do it one at a time all right let's do this gu okay that that's good hold on you got to lift it up my arm's getting caught my arm's getting caught oh my poor arm okay great she slipped out she slipped out there we go all right oh that gear fell off I don't know about this Jerry there you go it just slipped off we're good now anything that just slips off is not supposed to just slip off and watch out don't hit your hands on those thrust bearings there you go good stuff have it fall towards the front okay give it a spin Jimmy nice okay we're good okay so we have our clutch assembly installed in the bike and it works very similar to how a car clutch works you have a clutch pad that forces up against the flywheel and engages the engine with the transmission now with a motorcycle there's just a couple more components that make it a little bit more tricky to understand but it does the same principle so unlike a car where you have a single friction disc this you have multiple discs you have let's call friction pads and then you have metal pads that engage with those friction pads and those go in between your outer Hub and your inner Hub so this will freely spin with your transmission this is directly connected to your crankshaft so when you want those two to mate together you use these you can see that only the metal discs are moving in here oh yeah right yeah so now what connects all these two is this guy right here this is the pressure plate so this sits on here and it clamps all the clamping force is between two four six Springs that pushes this whole thing together and when you want to disengage it a rod from the other side pushes a hydraulic ram that pushes on this lever which pushes on this Hub separates the whole thing this allows to turn independently of that you switch gears you let off the clutch boom it engages and now you're speeding down the road now one of the things we talked about before is the reason this engine can make so much power is because the size of it in motorcycle comparison one of those things is these P right here these are 80 mm in diameter to put that in perspective the Civic has 85 mm Pistons also an inline 4 this is an inline 4 that car weighs a couple th000 lb this thing weighs a couple hundred that's why this thing can go 200 mph and the Civic can't okay here's our cylinders this is kind of like a multi-piece step here this is uh the middle portion of our assembly and we probably did this in the wrong order probably should have put the Pistons in here then connected our connecting rods to the crankshaft with the bottom end undone but you know what we like to make things interesting so we're going to get this cylinder on then get the head on and hopefully fire this thing up Jerry there's still a lot of stuff on the table Yeah but not really this is a lot of stuff now this is where it's going to get a little complicated I think what we're going to do Center Pistons first bring her down Jimbo all right bringing her down okay hold on okay bring her down okay great how's that feel not right I'm starting to think we didn't put this together properly uh we did all right we got some new ARP head studs this is going to be our link to the cylinders to our head so we're going to make sure those are nice nice and new so that when this thing sets off for the first time after we rebuild it the head doesn't fly off okay so our timing chain won't fall to the bottom and we have to put the head back on do a little wire right here around this then we'll feed it up we'll just keep it up here cylinder on now let get the head on there all right we got the head of our Hayabusa in engine this is a dual overhead valve set up with four valves per cylinder two intake two exhaust big chunky intake valves look at those things sucking in the maximum amount of air possible we're going to slap this thing on here stop you're making fun of it stop it you couldn't do the worst way the longest wire on the planet STI okay I got it it still worked head on good job Jimmy all right I'm back back and uh it's time to finish up this Hayabusa engine you guys got a lot done but now it's time for a pretty critical part of putting any engine together just timing we got the timing marks aligned here down at the crank but we have our two cams up here at top they have some markings on them which we're checking right here we get that wrong and this thing won't run and if it does run I believe it's an interference engine oh okay so then so we got to get it right yeah because if we don't you get what we call Slappy valve and that's where the valve slaps into the piston and they become real best friends they actually fight the Piston always wins so we got to make sure that this is right then once we get these cams in we're kind of like on the home stretch so we are on uh intake side we should have the number two uh level with this and on the exhaust we should have number three level with this pointing at each other when we put tension on it no we're still one Toth off right yeah so it's I needs to rotate one cck okay good what well skip it back H I don't exactly know how you tension that in terms of like okay know when enough is enough yeah okay tell me when I come back around I think I'm close here and uh keep going keep going and stop right there so these are lined up with the chain marks but the crank is 180 out I think and uh oh there it is that's good right probably hey what the hell is that I don't remember trying to think where I pulled this thing off woo okay we're fine we're we're fine so this is the gear that the starter engages in with the clutch it would help if we had a manual you know you're not supposed to remember this stuff St we just do DNT I mean it definitely matters Less on an engine that spins faster right yeah you just don't want it coming off and it won't this one gapped up huh we missing some Hardware huh yes and uh I noticed these Hardwares are missing too we'll probably want to put those back on yeah you want to find them it feels uhoh uh Jerry what we got a crack man where uh in the case like right there oh brother okay well that's not good cuz you can I don't know if oil can come out of there yeah but even if it can what it definitely means is that something inside of here is in a position that it shouldn't be because when we try to torque down these bolts uh it pushed through the case rather than just coming together like it should so this has to come back apart at least you know what I'm thinking though what I'm thinking this gives us a great opportunity to do something special what we were just going to put this thing back together stock yeah how about we pull it all back together again and we go balls to the wall okay I'm talking forged internals I'm talking cryotreated transmission gear sets okay I'm talking uh p and polish on the head I mean you don't piston connecting rods crank let's do it up let's make this thing freaking powerful all right let's go back to the drawing board and figure out what we want to put it in yeah and then we'll fix this Y and then we'll put it in some cool sounds good

Why This Tiny Engine Can Go 200mph

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