BS, mine was lean when stock ^

 

If you are taking it to get it serviced soon i would take it now. One of the things they check at the first service is the valve clearance, and if the valve clearance on the intake valves is too tight it can hold the valve open just a hair and cause it to draw in fuel when its not suposed to. In other words it smokes and runs way rich all the time. You could check it yourself but if you are going to take it in i would just let them check it for you.
Then again i dont know if that would also apply to a fuel injected engine or not. Just a thought.

 

I can show you the lambda tables for the two stock Raptors we own and the power improvements from changing the ignition timing. The exhaust gas temperatures dropped around 600 degrees F. They were running rich. Yours might have run lean. Didn't get the wide band oxygen and EGT sensors on your bike.

 

matter of fact i have an appointment to take it in for the first service next tuesday the 2nd but yeah thats what i was thinkin too about the valve clearence also i have head that the throttle positioning sensor is going bad on some of them? but neways will deff let you guys know how it runs after the first service. and it sux cause i been outta ridin for 2 weeks cause its runnin so dam rich i can ride it without it backfirin n all that BS but yeah thanks alot all!!!!!

 

mine has ran great. On my 4th tank of gas. What all should be done on the first service? My temps are in the 80s-90s. Hope you guys find a fix or what the problem is.
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