Does anyone know propor (initial) adjustments on all screws for a 1991 Yamaha Warrior? Its my friends quad and i cleaned the carb and got a new o-ring and the boot that goes from the carb to the cylinder, now i just need to know the proper adjustments for the carb...

thanks

 

Gently seat the idle mixture screw, (bottom of the carb,near the front) and turn out 2 turns.Start up, let it warm up, set the base idle (big knurled screw on the side of the carb ) at about 1000 rpm, I don't have a manual, some like a higher idle, some like it to just stay running, so in case of a crash, it stalls easier. Let it warm up, run it on a flat surface, or downhill is even better, in 2nd gear, rev it up, and let it coast. If if pops while coasting, turn the mix screw out 1/4 turn at a time until it stops popping on the coast. If it coasts fine, turn it in until it just starts to pop, then back off 1/4 turn. That should get you real close for best throttle response and idling.

 

wow......thanks for the help .....will do