so my ds has been having issues as of late...itll start right up, idle fine and even move alittle but once i give it the gas it sounds like its bouncing off the rev limiter....i was told it might be a bad cdi so i went out and got a new one, installed today and the same thing happened.....the carb has been checked and cleaned 3 times.....ive found nothing.... my dad mentioned today that it doesnt appear the gas cap is vented so that could be an issue but im out of ideas and im just frustrated.......what do you guys think......i need some help......

 

the gas tank is vented there is a tube under the plastics that could be kinked and causing a backfire or it could be the jets you have in the carb check the spark plugs and see what color they are

 

alot of people have had problems with the stupid ventline and have cut them shorter it goes from the gas tank all the way to the rear of the quad

 

I agree that it sounds like possibly the vent lines that run under the tank could be pinched off.I had the same symptoms and finally i pulled the tank and saw that one of the lines was almost totally closed off and when i freed it up i had no more problems.

 

something so simple as a gaseline bomb could have designed that better and could have made a vented cap so many problems caused by this stupid thing

 

I've had the vent cap issue. Loosen the cap and it should go away. If it doesn't. . . this may not be your issue.

. . . . who told you to go buy a CDI without checking this first??? Sounds like someone is in for a flogging.

 

sounds like a dealer wanting to get a little cash in his pocket [img]i/expressions/face-icon-small-blush.gif[/img]

 

check you clutch

 

it was actually a friend of a friend that does alot of small engine work...luckily i got the cdi for 15 bucks off ebay....haha.....so it seems like everyone is leaning towards the gas tank vent hose.....im going out to trim it up right now and ill tell you what i find later........if this is isnt my issue whats my next step????.....atvaddict....why do you say check the clutch????

 

Just a couple of things I do that might save you some time next time. Keep your extra CDI to try if anything like that comes up again. Also if you think it might be a vent line just take the cap off next time. Sounds like you got it licked now. Good luck