I have the same issues and coincidently the only belt I haven't broke is the Gboost RS. I've lined up clutches at full shift, done everything to make sure alignment, etc... is all good. I get a handful of passes out of an XS belt. Clutches will be cool, no sign of slip, then next pass breaks right in half. It's really frustrating. I'm starting to wonder if the motor under torque is moving causing clutches to become out of alignment. I do have 10000 miles on my chassis. Maybe I'm just at the limits of the Yamaha clutches.Wow wtf, what belt??? i have a 550hp can am x3 running a zona rotor xr54 turbo at 48psi on e85. I tried every belt i could, getting good belt holding ability was not the issue it was the belt capable of holding the stress. The only belt i have not broken is the gboost rs belt. A factory can am belt will last 2 pulls i the sand. Belt pulls apart. Belt temp 90 degrees F. 130mph in the 1/8th!! wow man what a rocket!!
Wow crazy that we found the same limit.I have the same issues and coincidently the only belt I haven't broke is the Gboost RS. I've lined up clutches at full shift, done everything to make sure alignment, etc... is all good. I get a handful of passes out of an XS belt. Clutches will be cool, no sign of slip, then next pass breaks right in half. It's really frustrating. I'm starting to wonder if the motor under torque is moving causing clutches to become out of alignment. I do have 10000 miles on my chassis. Maybe I'm just at the limits of the Yamaha clutches.