More Superbike Engine MODS for the Yamaha R3 [Superbike Build Series Ep.7]

More Superbike Engine MODS for the Yamaha R3 [Superbike Build Series Ep.7]

We are now in the final stages of our engine build for the Yamaha R3 Superbike! This motor has been through a complete overhaul utilizing top of the line components as well as some custom machined parts that will surely make it perform like no other. A lot of time and energy has gone into this build and it will definitely set the standard for all future projects. We look forward to it’s completion so we can finally test what we have worked so hard to achieve. So stay tuned!

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Readers Comments (50)

  1. Bom dia! Esse comandos de válvulas são de competição? São maiores que o original

  2. Holy Shit you guys went to town with this thing.

  3. “Valve lift” isn’t how LONG you hold the valve open…it’s the max measurement it WILL open. “Duration” is how long it will stay at that open or certain configuration. I’m sure you know that (well maybe you don’t, wouldn’t be surprised with the patronizing attitude you have towards your explanations and viewers) and people screw up their terms all the time (I do it plenty myself), but for people who don’t know and are watching these videos to actually try and educate themselves on these things, they might appreciate the proper terms because they are very different even though we are talking about the same actual parts. Not trying to be a dick or know it all by any means because I don’t, but some might appreciate that.

  4. syed muhamed ibrahim March 7, 2021 @ 10:08 pm

    I am hardcore fan for yamaha racing mechins.. i ma R3 woner in india my bike top speed only 196 kph only I am not satisfied my bike 210 kph is possible dudes pleas help me guys

  5. to hard to watch, how to for dummys

  6. I didn’t know Sam Rockwell was into bikes!

  7. Hey there,, I just wanna ask 1 question, can or not R3 convert cylinder head and cylinder block MT07? PNP or need small modifications?

  8. Worried about rod stretch,throw titanium rods in there.Carrillos stretch and are often heavier than stock rods,good thing about Carrillos is they are pinned and have ARP bolts and can be re-bushed,and you can re-use the bolts multiple times.Carrillo told me 10x,but I checked bolt stretch and replaced after 6th motor freshining.Throw some APE TI retainers in there and depending on added lift you may want to shim them springs.

  9. Make more videos of racing bike engine rebuild

  10. Wow! This motor looks very similar to my super tenere 1200 motor. Question I have, my OEM timing chain tensioner (oil pressure/spring) type started rattling on startup. Yamaha “updated” the tensioner to correct this issue. Meanwhile I purchased Graves manual tensioner. What is Your way to adjust proper tension on them? Also down the road do I wait for the “startup rattle” to adjust or there is a better way? Thx!

  11. Myxamatosis playing?

  12. higher compression will make engine knocking sound nd can damage push rods..u can’t run modified bike on normal 89 octane petrol

  13. Matthew Tucknott March 7, 2021 @ 10:21 pm

    I feel like the commentary in this video is sort of patronising, almost as if it’s aimed at 5 year olds watching Sesame Street…

  14. Estilo Livre Motos March 7, 2021 @ 10:21 pm

    Bom di sou do brasil..corro de r3 peguei ela agorra ..corria de ninja 300 sinto fauta dessa embreagem deslizante .onde comprou se poder me passar agradeço

  15. Can you imaging working with this annoying prick all day!? I’d end up strangling his condescending ass by day 3. Who the hell would ever hire this son of a bitch? Great engine builders are a dime a dozen.

  16. Damn this dudes annoying. Watched this when it came out and tried to watch it again just now.

  17. weeeeeeelll

  18. What are the front and rear sprocket sizes ?

  19. how high did you go with the compression ratio for this build and wich fuel do you intendt to use?

  20. 12 000 times going up and down? Isnt it more like 12 000 : 4 cilinders is 3 000 times? (assuming its a 4 cilinder motor)?

  21. Sharing machine knowledge I really like because I also pengamina Yamaha R25 or R3 is the same, thank you, friend

  22. Holding the valve open longer is called duration not valve lift. If it is lifted higher also it’s called more lift and duration.

  23. the intake port has to stay ruff so there is more contact suface for the fuel to evaporate

  24. bigwheelsturning March 7, 2021 @ 10:35 pm

    I hope your work bench was clean, so you didn’t FU the new face of the head. Um-K!

  25. Joshua Harrison March 7, 2021 @ 10:37 pm


  26. can you make this engine sound like mt07?

  27. u drunk?

  28. You talk funny. Informative video nonetheles..

  29. I could watch your vids on this build all day..its like being at it..learning a lot i am

  30. What oil did you run in this engine on the track?

  31. Lorenzo Garcia March 7, 2021 @ 10:43 pm

    where can we buy that racing camshaft assembly? @13:25

  32. Carlos Freitas March 7, 2021 @ 10:44 pm

    nice video, another subscriber

  33. Wish you nothing but the BEST dude as mechanic and rider I appreciate your non BS talking

  34. I think you mean Duration, and not Lift when it comes to how long the valve stays open….

  35. Mervin Terrano March 7, 2021 @ 10:45 pm


  36. Lorenzo Garcia March 7, 2021 @ 10:45 pm

    how about Big Bore Kit 350cc or higher?

  37. Mohammed Qureshey March 7, 2021 @ 10:45 pm

    Does tst sell a built street version of their engines

  38. Steven Devereaux March 7, 2021 @ 10:47 pm

    LOL, Just realized you sound like Justin Hammer from Ironman 2 explaining things, love it lol.

  39. This guy could make his own bumblebee.

  40. I love this guy.

  41. Have rod failures been an issue with these motors when built? Those upgraded rods add a LOT of mass/inertia. Is it needed? Yamaha engineers are pretty good. I would be very surprised if the stock rods did not have enough safety margin to handle ANY HP increases you could possibly squeeze out of the motor. Have you done the rod stretch, BMEP and fluid film stiffness math to determine these are really required? I do like the slipper clutch, especially if you are upping the compression….

  42. This guy . . .

  43. snorttt 6:45 lol

  44. one of the most enjoyable engine build videos i have seen in awhile.

  45. Jonathan Sloan March 7, 2021 @ 10:58 pm

    That was rude of the guy to just kick mark Wahlberg off the set

  46. Alinel Woundhorn March 7, 2021 @ 10:58 pm

    intake works better when its not "smooth" btw

  47. sometime,… i think, why the factory build an engine with standard function? if you can make race function… but everything is the same, engine can grow up by upgrade and tunning.

  48. Would have been great to start this project on a new Ninja 400.

  49. Valve lift is not the same as valve duration.

  50. The rods expand with heat they don’t stretch.

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