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  1. #1

    1992 SL 650 again

    Its all done now runs pretty good thanks to you all. One last problem. When the throttle is wide open it almost stalls out. If you back off it will run great all the way through then once you get to more than 3/4 throttle does it again. Carbs were cleaned, tank vent is ok, fuel lines leak tested, installed the second fuel pump for # 1 cylinder all plugs are a dark brown. New fuel filter, petcock has been cleaned, new gas 120 psi in all cylinders carbs seem to be syncked and the intank fuel screens were cleaned. Can someone help me get the last piece of this puzzle?


  2. #2
    Lake Mead Bum & BTLS Mark starflight's Avatar
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    If you choke it, does it help? If so, Turn the high spd adjusters out a 1/4 - 1/2 turn, and see if that helps.
    You say you added another pump in addition to the one you had? Not the triple outlet pump?

    Be sure to check your piston wash. The pistons should have fingernail sized clean spots near the ports if its burning right.

  3. #3

    doesnt help

    Choke does not help, any other ideas?

  4. #4
    Lake Mead Bum & BTLS Mark starflight's Avatar
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    Lets take a look at your piston wash to see how its buring.

  5. #5
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Next time out, take the plug wrench with you. Run it wide open and make it stall out. Then remove the spark plugs and inspect them. If they're wet you are too rich and need to close the high speed screws. If they are dry, maybe you need to open the screws or look for a faulty fuel pump. The triple outlet is the better one to use.

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