2001 Yamaha Raptor 660 Cutting out problems

[Mandy]

Hi Guys my ATV keeps cutting out on me during races this is normaly when im on a straight and have it wide open and when I slow down to take the turn or jump it cuts on me so i have to pull in clutch and release to kind of kickstart the bike again which in turn makes me lose time. any ideas why its doing this?

[tyler250rrocks]

clean the carbs and check the boots

[Raptor8]

does it pop-pop-pop as you are off the throttle? if so, too rich. Otherwise, prob too lean, or bring the idle speed up. it is fairly high on a 660, about 1100-1200 rpms. Clean the airfilter too OK?

let us know how it goes

Edited June 26, 2010 by DirtDemon

[DirtDemon]

Agreed, my LT-R does the same things when I have it set to rich or when the air filter is dirty. Probably a jetting problem or obstructed airflow.

[Mandy]

Hi Guys thanks for the advice i will check those problems and let you know how it goes

[Mandy]

Thanks Guys I put in a new air filter and had the carbs cleaned out so far it hasnt cut out on me at all

[DirtDemon]

You are welcome, good luck with the races.

[Mandy]

thanks if i win ill make sure to have a drink on you from the winners cup

[DirtDemon]

Yes, you do that.