what would make a yfz450 backfire at hi rpm. also what could make a raptor 660 make a noise in the tranny when it is about to stall. when it makes the noise the reverse light flickers
what would make a yfz450 backfire at hi rpm. also what could make a raptor 660 make a noise in the tranny when it is about to stall. when it makes the noise the reverse light flickers
try adjusting the air/fuel mixture ratio. My trx450r had the same problem and that fixed it.
04 Trx450r: totally modded
KTM450sx,400ex, cr250, xr100,
Triumph Daytona 675, YFZ600r sport bike
Thanks To...
IMS Products
AC Racing
Flex Bars
Lonestar
Cycra
Spider Grips
Laker Custom Plastics