Low end / off idle miss

Jussgivner

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Hey guys, I have a 14 800 xm 154 with an instaboost kit on it I'm having an issue with a miss as soon as I touch the throttle it did it before I had the turbo kit on the dealer cleaned my rave valves put new plugs in checked all me reeds and I thought it was good. It did a very similar thing last season only when it was hot and it actually shot little blue flame balls out the exhaust when it missed. I have a video of it but I'm not sure how or if I can post a video
Any input would be great
Thanks
 

ippielb

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Fuel pressure too low? Sounds like something a lean condition would do. Not having enough fuel to get a proper combustion and pushing it into the pipe and poof.
 

blubbles

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First thing I would do is change the fuel filter and new plugs. Start with the easy things and go from there.... Did your sled get new rave valves from the recall?
 

moto5151

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I'm not super familiar with skidoo, but they must still use some sort of tps. I would check that first.
 
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