Skipping, jumping, wont run right

redhatman

New Member
Apr 20, 2008
47
0
0
Minnesota
pl-designs.tripod.com
Hey guys ive got a freshly rebuilt blaster on my hands I bought used. wiseco big bore kit is in it, and a 38mm carb I believe. Oil block off, and tors out.

Either way, when I test drove it he put in a new plug because he was running a 16:1 for break in. I ran that plug for maybe 30 minutes, and it went out yesterday. The atv was skipping and backfiring a lot, and was just not really responding to the throttle. So I loaded the atv up and took it home.

I replaced the plug last night and fired it up this morning. Same thing. I have tried two different brand new plugs and it hasnt got any better. I emptied the gas and restarted with a mix of 32:1 It starts up fine if I have enough strength to kick it over enough but dies after a couple seconds, but will keep running if i give it constant throttle. it backfires a lot while misfiring. It ran fine yesterday!

92 octane, and valvoline 2 cycle.

What else could it be?

Thanks guys...
-Pat
 
Last edited: