Question about Husqvarna Chain Saw Handle Models 50 51 55 154 254
Turn both jet screws CW to stops (lightly), then back out CCW 1-1/2 turns each. This is a basic setting which should allow the engine to start and run. Before adjusting anything, check the fuel filter, air filter and muffler for plugging. Start the engine and allow to warm up. Pull the throttle full on and adjust H needle CW until the engine begins to speed up, but still 4-stroking. Correct adjustment is when the engine 4-strokes running free, but immediately 2-strokes when cutting. Release the throttle and adjust L needle CW for better idle, yet allows the engine to 'follow the throttle'. Adjust idle speed so that the chain stops turning, but the engine continues to idle. Hope this helps!
Posted on Jul 11, 2010
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Posted on Jan 02, 2017
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