Question-have 01 warrior that sputters out the top end of every gear.Runs great thru rpm range til it gets to the top,stator 2 years old,new ricky stator cdi,coil is new,plug looks good,cleaned kill switch on handle bar,ignition key seems ok just breaks down top end of each gear.Any thoughts? Thx,goin to dunes want to get fixed this problem just reared its ugly head recently.

 

either the carb needs cleaned or you need to step up on the main jet

 

mine did that too, clean carb and check your valve clearances. Carb cleaning helped some but I then found my valves to have WWAAAYYY to much clearance.

 

Carb is good and clean,stepped up main jet two seperate times still same,will check valve lash this wknd, havent checked since initial motor break in last year-they dont sound too noisy though thx for the input really appreciate it! Anything else come to mind please let me know

 

Mine didn't sound noisy either. I would still check since the motor was redone anyway you might be surprised. Let me know how it goes.

 

did everything and checked thevalves and they were a little too close and re-lashed the valves then we cleaned out the carb again and its not as bad but it still does it on top end. thinking about gapping the spark plug dierently, any coments? Any advice is appreiated thanks!

 

When it starts to spudder imediatly shut the engine off and check the plug to see if it is rich or lean condition. Then start it up and then spray carb cleaner around the intake boot and carb. If the RPM increase you need a new boot or new gaskets for the carb.

I had a snowmobile that would cut out when it was reved up. I about had to ditch it in the mountians because when I was trying to get out of a DEEP valley the stupid thing would spudder and I could not make it out. When I got home I did the above mentioned and found I had small cracks in my intake boots but by looking at it I could not see them. What it did was cause me to go lean and spudder when I was on it in the higher RPMS. Not saying this is the problem but could be. Good luck!

 

whats your main jet size your running, 148 and 150 seem to be the money with these

 

Sim and Beastly no leaks between carb/intake runner/head,plug looks good,no lean/rich condition-nice tan color started w/160 jet went to 170 now have 180 just a little history bout the motor
hot rod crank/rod
10.25 piston
.030 over
stage 1 hot cam
new valves/springs
a/m exhaust and air induction
ricky stator stator
a/m cdi box
new coil w/plug wire

fuel delivery seems ok,leaning towards something ignition wise breaking down under heavy load?! just baffled this just started doing this any more thoughts would be great appreciate the input!!

 

forget the plug thats not a consistent way to read these days your mains are HUGE go to a 150, ive never seen anyone go to more than a 152 on warriors