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Thread: Black smoke

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  1. #1
    Join Date
    Mar 2012
    Posts
    3

    Black smoke

    I got this wheeler . Idk if it's jetted right of not it's got k@n filter but I left the cover on and a white brother r4 pipe. I noticed when I rev it up almost to rev limiter it will puff black smoke, so I thought maybe to much fuel. But when I'm riding and hold it to the bars up a hill it starts to bog out and die so I have to pull in the clutch and rev it up . What's wrong with my jetting?

  2. #2
    Join Date
    Nov 2003
    Location
    Chi town burbs, IL
    Posts
    4,256
    Sounds like it's jetted too rich on the main jet.

    Keep reducing the size of the main jet in one step increments until it no longer bogs.
    00' 400EX - GT Thunder 450 stroker, custom JE 12.5:1 piston,
    +7mm stroked crank, HD stroker rod, HRC cam, GTT full race porting, +1mm intake valves, FCR 39 carb, CRF timing chain, Denso IXG27 iridium plug, full Hinson 8 plate clutch, Desert Toyz Supercooler w/ SPAL fan, UM airbox w/ UNI, CT Hi-Output exhaust, Roll LOBO II F/R, LT PEP 8 click ZPS piggyback fronts, PEP ZPS rear, YFZ brakes/450R master, CCP stabilizer, Hiper Tech beadlocks, Durablue X-33, TAG, Quadtech, ASV, AC, IMS, RAD, Works Connection, Galfer..

    05' Kawasaki KLX 110 - Fast 50's springs F/R, HRC cradle, Rox risers, FLY fatbars, NGK CR6HIX iridium plug, Twin Air filter

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