hi, im looking at an atv and the guys says when you try to open it up fast it boggs down?? can anyone tell me why and is it cheap to fix?? thanks[img]i/expressions/face-icon-small-disgusted.gif[/img][img]i/expressions/face-icon-small-happy.gif[/img][img]i/expressions/face-icon-small-mad.gif[/img][img]i/expressions/face-icon-small-happy.gif[/img][img]i/expressions/face-icon-small-disgusted.gif[/img]

 

Either too lean or too rich. You need to look at the spark plug. Then again a bad plug will cause it too. Does it run ok if you don't crash the throttle wide open(crashing the throttle is not the fastest way to accelerate but no ones listening to me awyway)? Does it run flat out ok? What brand and what size rig is it? Auto or manual? Need way more information to give accurate answers.

 

hi, it is a 1988 kawasaki bayou 300. the guys says that it has alot of crap in the gas tank and he says it run fine u just cant accelerate quickly

 

You probaly ought to hop over to the Kawasaki forum and ask this question there.

 

have you ever rebuilt the carb? Your jets can be obstructed, probably the high speed jet if it is'bogging' down. I'm not real familiar with the operation of atv carbs, but I have a lot of experience with two stroke carbs, which have a regulator portion containing diaphrams, etc. I tune my own carbs (triples) on my race jet ski. If this problem was with a ski, I'd say depending on how the spark plug looks, you'd either need to replace the plugs or lean it out or make it a bit more rich. And the the machine is that old, a carb would definately be rebuilt. But then again, atv carbs are different I'm sure. Hope you can get it all fixed.

 

Your jetting is probably off, or the floats are set too low.

 

.. Rebuild the carb, and if it still does this then adjust the pilot air screw