ATV Connection Magazine

What will happen?

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Posted by: AtcRida

What would happen if ur running a bike with out an air filter?

Posted by: AtcRida

can this be on of the reasons why my spark plug keeps going black cuz i changed jets to original and now it idles but spark plug still gets Black

Posted by: AtcRida

Well actually it doesnt smoke and it runs fine except for the black plug

Posted by: AtcRida

jetting ive messed around with and float level dont know how to check and a hotter plug runs like crap but w/e some guy wants to buy it from me and im going to just get an 04 blaster or Z250 thanks for helping me out tho

Posted by: peteyz24

doesnt sound like oil burning, but since your in florida i would put a filter on that puppy or you eventually will have some problems

Posted by: jim450r

i would get a z250 b4 u get a blaster...z250 is a more all around quad..

Posted by: hondabuster

Depends on the conditions. In minnesota we have snowblowers and snowmobiles that dont have air cleaners... thats not a big deal in winter, theres no dust or dirt to inhale.
But if its dusty, and it usually is, if youre following another quad, itll scratch the innards of the motor, rings, pistons, cylinder walls, and it wont be long and all your compression will be gone.

Posted by: hondabuster

If its black because of oil, then it could be a symtom of a worn out motor. I would do a compression test, and see how much you got. You realisticly need 80 psi or more.
Does the motor smoke? what color is the smoke? If its blue, its oil .If its black or grey then its too rich. If its too rich...the float could be too high, or the jetting is too rich.
You say it idles, how is the rest of the rpm range? Missing, sputtering, bogging? Backfireing?

Posted by: hondabuster

Check the float level, then try adjusting jetting. Or you could just go to a hotter plug, seeing how it runs just fine as is.