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carb settings


rev's Avatar
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04-12-02, 04:49 AM   #1  
rev
carb settings

hi
which is the best method for setting the H &L needles on trimmer and
chain saws using walbro carburetors?
thanks
rev

 
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bwiesner's Avatar
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04-20-02, 10:46 PM   #2  
bwiesner
A screw driver. LOL. Turn them in to seat lightly, then back them out 1 1/2 turns. Start it up and warm it up. Then turn the idle mixture screw out until it starts to run rough and rpms start to drop, then turn it in until same thing happens. Then turn it half way in between. From this point adjust for smoothest idle. Hold throttle wide open and set basically the same way. Don't hold the throttle wide open more than 10 seconds at a time. But when you turn it to half way point turn it an additional 1/8 turn out. Later Butch

 
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