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So I've had my bro-in-law's 4 wheeler to get it running again.
Ended up buying a new aftermarket carb, cleaning fuel tank, cleaning petcock and it works near perfectly .
put the petcock to PRI for about 5 seconds , turn it back to on, pull full enrichener , start it up (starts right up), slowly release the enrichener and put it in gear and go up down the road. Slow, fast, idle etc all good
BUT then out of the blue it will start missing badly (by this time the motor is hot), to the point I can't move the ATV.
Then out of the blue, maybe 30 seconds later, it is back to normal and I can go up and down the road for testing just fine.
I'm trying to get the ATV in tiptop shape to return to him, but bugged by this miss, I'm sure this machine will come back to me if it keeps missing...
Thanks in advance
BTW I am mechanically inclined, but not an expert on this atv...
Good Morning All!,
After a significant amount of reading and tinkering, I'm stumped. We have a pair of Arctic Cat DVX 90s (4-stroke), and one of them runs very rich at wide open throttle. I've cleaned the carb (which was installed new last year), verified the main jet (80) to be per the original spec, installed a new air filter, tried a hotter spark plug (CR6HSA), and adjusted the valves (tightened a modest 0.0005" but improved starting). The hotter spark plug may have help just a bit, but not appreciably.
Just for fun, I swapped the CDI between machines, and that didn't help either.
Fouling plugs very quickly, but not to the point the machine will not run or start. [black instantly]
Logically, I assume I'm revving out, but the other machine doesn't "stumble/blubber" anything like this one.
Should I try a smaller main jet?
Any ideas you guys may have would be much appreciated.
Thanks in advance everyone.
By Frank Angerano
So who's pulling for who in this years Super Bowl?? Im a big fan of Andy Reed and Kansas City (But loyal to my NY Giants) hope he finally gets his ring. He's a great coach but has had a hard time closing the deal! Maybe he gets it done!
Good luck to all the pool people!!! I have 11 boxes and never hit on a Super Bowl box so im not expecting anything good to come again but always hopeful.
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