I HAVE A 04 650V2 ABOUT 2 MONTHS AGO IT STARTED RUNNING ROUGH,IT WOUL NOT REV AND POPED OUT THE EXAUST TOOK IT TO THE CLOSEST DEALER AND THE SAID THE CDI BOX AND COILS WENT BAD. 2 MONTHS LATER THE SHOP FINNALY GETS THE PART AFTER MANY CALLS TO AC. IVE ONLY HAD IT BACK ABOUT A MONTH AND TOOK IT FOR A RIDE TONIGHT AND STARTED DOING IT AGAIN. THIS SUCKS. DEER SEASON IS JUST AROUND THE CORNER AND I DONT WANT TO BE WITHOUT MY WHEELER. HAS ANYONE HAD THIS PROBLEM. THIS IS MY FIRST NEW FOUR WHEELER AND IAM NOT IMPRESSED WITH AC'S CUSTOMER SERVICE. HAS ANYBODY HAD ANY PROBLEMS WITH THEIR CDI

 

Sounds like the belt reset procedure, have you done that yet? The 04's are known for generating eronious signals in the wiring that causes the belt reset to trip. First look in your owners manual and follow the belt reset procedure then either bring it in for the noise filter install or do the smart thing and buy a Dyna CDI, your machine will fly, no belt reset anbd no reverse override, best money I ever spent.

 

I have never heard of a CDI or a coil that goes bad slowly, they work properly or they they don't work at all!! (AND BOTH AT THE SAME TIME!!!), your dealer sounds like they have no clue or they are very smart and taking you for a ride. The 2004's also had a bad check valve on the fuel tank vent, I would check that first. My 04 650 had a bad needle and seat in one of the carbs and that made mine run very rough and it would back fire also. I would also change the spark plugs.

 

check and see if your tank is building pressure , if you hear any hisss when removing the gas cap the vent is clogged, or ck valve is sticking

 

YA I DID NOTICE PRESSURE WHEN I TOOK THE GAS CAP OFF.IM WITH YOU GUYS CDI BOX BAD TWICE IN A ROW SEEMS UNLIKELY I'LL TAKE IT OUT TODAY,IF IT STILL DOSE IT THEN IM TAKING IT TO A DIFFFRENT DEALER. HEY HOW MUCH IS THAT DANA CDI AND WHERE DO I FIND IT.

 

OH YA WRRENTYS UP IN OCTOBER SO I NEED TO GET THIS TAKENCARE OF QUICK.AND THE LAST REPAIR JUST COST ME 50 DOLLARS FOR DED. AND IF IT WAS THE BELT RESET WOULDNT THE LIGHT COME ON

 

there is 2 ways the belt light works one way it comes on every hundred hours as a reminder to check your belt and the light stays on solid the 2nd is limp mode when it flashes it wont go over 5-10 mph until reset

 

from what you describe it sounds to be the tank vent blocked if you hear pressure when the cap is removed without a dought its blocked and will cause the running condition your having also the choke plungers on the v2 stick and also cause it to run poorly as well but from the sounds of it its the vent

 

took it to the dealer yesterday. i tried taking the gas cap off,that should vent the tank, let it idel for a while and no improvment....illwait and see what this dealer tells me..they have dealing ac much longer then the last one I took it to..thank for the suggestions

 

the shop called today,said their was old crystalized fuel in the carbs. he pulled them and flushed the tank and said run good now. Ill pick it up tomorrow. the bummer is warrenty dosent cover it.Allwell guess i will buy a bottle of stabil also.