I'm new all help welcome
#2
I don't know if this will help but here goes. My brother-in law has a yamaha raptor 660 that he just replaced the sprockets on. He dropped one tooth on the front sprocket and added either one or two teeth on the rear. He claims it's got a little more punch out of the hole and in the mud. He also claims it brings up the rpm's alot quicker which make sence with the change he's made. Only drawback he's noticed is top speed has reduced by about 5-10 mph which is no biggie since it ran damn near 70 mph stock. Too fast for most riding anyhow IMO.
#7
Hi mate sorry I took so long to reply having a bit of trouble finding my way around the forum, thanks for the advice Ill try it.


