Czytajac ten komentarz to chyba bez znaczenia który rok bo koles pisze ze mimo modyfikacji yamahy problem wystepuje dalej...

As we’ve said for 5 years now. This 2015 should be 100% recalled! We have showcased the side to side float often! This is super evident when you simply pull the RIGHT side engine cover. Look at the cam chain! It rubs the cases! How? It’s over 3mm .100” away from the cases! Wtf? It’s because the cranks pulling “left” a lot! Floats over and then with the flex and “tapping” of the counter balancer throw it stops/snaps! We have shown soo many. Street. Race. We’ve built. Other shops built. Our ecu. Other ecu. Stock engines. Stock ecu. Doesn’t matter.

Plus as you pointed out Yamaha quietly changed in 2016 the following to help solve but it didn’t. We still see 2016, 2017, 2018 cranks failing! They changed entire cases, crankshaft, added thrust bearings, changed pistons rods etc yet zero mention of this!

The S or M doesn’t matter. The S has a “different” crank obviously due to steel rods for weight but it’s same exact design and same exact failure

I personally am SO fucking happy to see others even way over across the pond 7000 miles away have seen the IDENTICAL ISSUE! Yamaha should be worried about a class action on these.

We have a new thing for these were close to releasing we have been testing to help (can’t eliminate 100%) but really help prevent this much crankshaft movement. It requires the engine to be taken apart thou so it’s not A product designed To help simple street guys.


Guys if your concerned simply remove the right case cover. Look at the cases behind the inside of the cam chain for wear. If you have it. That things about to snap!

Thanks for showing more in depth and proving to the haters that we actually were correct & showed this nearly 5 years now!

Cheers