WENT RIDING FOR A COUPLE HOURS NOTHING CRAZY JUST RIDING THRU WOODS , IT RAN GREAT , LOADED UP RAP , NEXT DAY WENT TO START IT NOTHING JUST KEPT TURNING OVER , PULLED PLUG IT WAS FOULDED OUT , INSTALLED NEW ONE STARTED IT RAN GREAT FOR MAYBE 2 MINUTES THEN FOULDED OUT AGAIN , MADE SURE CHOKE IS OFF AND IS NOT BINDING OPEN WITH CABLE PINCHED SOMEWHERES , ANY HELP WOULD BE GREATLY APPRECIATED

 

has anyone changed the jets in the carbs?Is air-filter clean?

 

i bought the bike used and just had motor reworked about 4 months ago , he said he checked the jets and they were fine for motor and tuning , filter , no i didnt even think about that , how would that make plug fowl out , you have to forgive me its my first quad and i am trying to learn the mechanics

 

Your motor needs the right mixture of gas and air to burn the gas properly so if your filter does not let the right amount of air through then you will be burning to much gas.This is what usually fouls plugs.If the tip of your plug when you pull it out is real black then you are getting to much gas or not enough air.If it is white chalky color then you are not getting enough gas.You want your plug to have a brownish tan color.

 

Pulled air filter out it is after market I believe Uni , anyways where the filter attaches to the housing you have to slide in is broke apart so now i am believing maybe trash got into carbs or maybe to much air , but I would believe it is not enough air and trash is in carbs , what is the best way to clean carbs any suggestions ...Oh and going to dealership and buying new air filter any one you might suggest after market , my rap is a 686

 

I have an 01 that recently had a similar problem. I found that the startor/choke plunger was all rusted in place. The spring behind it was rusted and broken in 2 places. The choke lever moved just fine but the pluger was not moving at all.

Check it out. Should only take a couple of minutes to unscrew it from the carb. Hope this helps!