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Carb Problems

1.9K views 5 replies 4 participants last post by  myol  
#1 ·
i have a 1990 454 LTD and just put the new float valve into the bottem of the carbs. After reinstal of them, when i rev it, there is a hesitation, then the revs raise a second or 2 later depending on how high i try to get it. Just wonder what i can do??
 
#3 ·
too lean. you need to either adjust the fuel screws or find the air leak you have. spray carb cleaner around the carb boots etc. the idle will either go WAY up or it will come down and stall (youll notice a difference) just take your time spraying one section/carb at a time so that you dont get confused where the leak may be.
 
#6 ·
CtNinjaNut said:
how do you adjust fuel screws?? i take it thats not the idol knob ive been playing with.
Air/fuel mixture screw is under the carb, I installed a thumb screw in mine so I can just reach under & mess with it. The a/f screw on my bike was covered by a plastic knob, if yours is the same you need to pull off the knob to expose the a/f screw. Do a search on your carb & you'll see where all the screws are.

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