Not sure if there is a carburetor kit out there for that machine, but it sound like your having fuel issues, would suggest a rebuild kit or replacement..
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Turn both jet needles CW to stops (lightly), then back out each CCW 1-1/2 turns. This is a basic setting that should allow the engine to start and run. Start the engine and allow to warm up, then pull throttle full on. Adjust H needle CW until the engine starts to speed up, but continues to 4-stroke. Proper setting is when the engine 4-strokes unloaded, 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 screw so that the chain stops turning, but the engine continues to run. Hope this helps!
Turn both jet needles CW to stops (lightly), then turn each screw out CCW 1-1/2 turns. This is a basic setting which should allow the engine to start and run. Start the engine and allow to warm up, then pull the throttle full on. Adjust H needle CW until the engine starts to speed up, but still 4-stroking. Proper final adjustment is when the engine 4-strokes unloaded, but immediately 2-strokes when cutting. Release the throttle and adjust L needle CW for better idle, but still allows the engine to 'follow the throttle'. Set the idle speed screw so that the chain stops turning, but the engine will continue to idle. Hope this helps!
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!
Turn both H and L screws CW to stops (lightly), then CCW out 1-1/2 turns each. This a basic setting and the engine should start and run. Start the engine and allow to warm up, then pull the throttle full on and adjust H CW until the engine starts to run faster, but continues to 4-stroke. Proper adjustment is 4-stroking when unloaded, but immediately 2-strokes when cutting. Release the throttle and adjust L CW until the engine idles fairly well, but allows the engine to 'follow the throttle'. Adjust idle speed screw so that the chain stops turning, but the engine will continue to run. Hope this helps!
Turn both jet screws CW to stops (lightly), then back both out 1-1/2 turns CCW each. This is a basic setting and the engine should start and run. Allow to warm up, then pull the throttle full on--the engine should 4-stroke. Adjust the H needle CW until the engine speeds up somewhat, but continues to 4-stroke. Correct adjustment is when the engine 4-strokes, but immediately 2-strokes when cutting. Release the throttle and adjust L CW until the engine runs fairly well, but still allows the engine to 'follow-the-throttle'. Adjust idle speed so that the chain stops turning, but the engine continues to run. Hope this helps!
Make sure the fuel filter, air cleaner, and muffler are not clogged. Turn both jet screws CW to stops (lightly), then back out 1-1/2 turns CCW each. This is a basic setting which should allow the engine to start and run. Allow the engine to warm up, then pull the throttle full on--it should be 4-stroking. Turn the H screw CW until the engine speeds up somewhat, but still 4-stroking. Proper setting is 4-stroking unloaded, but immediate 2-stroking when cutting. Release the throttle and adjust L CW until the engine runs fairly smoothly, yet allows the engine to 'follow-the-throttle'. Set idle speed screw so that the chain stops turning, but the engine continues to run. Hope this helps!
'L' is the idle jet screw and 'H' is the full throttle screw. Make sure the air cleaner is not clogged. Turn both screws CW to stops (lightly), then back out CCW 1-1/2 turns each. Start the engine and allow to warm up, then pull the throttle full on. Turn H CW until the engine starts to speed up, but still 4 stroking. Proper adjustment is when the engine 4-strokes unloaded, but immediately 2-strokes when cutting. Release the throttle and adjust L CW for fairly smooth running, yet allows the engine to 'follow the throttle'. Adjust idle speed screw so that the chain stops turning, but the engine keeps running. Hope this helps!
Check the air cleaner and muffler for plugging. One screw adjusts the idle stop (idle speed) position and the H and L jet screws set fuel mixture for high speed and idle speed mixture respectively. Turn both jet screws CW to stops (lightly) then back each out CCW 1-1/2 turns. This is a basic setting and should allow the engine to start and run. Start the engine and allow to warm up. Pull the throttle full on and adjust H CW until the engine starts to speed up, but 4-strokes. Correct adjustment is when the engine 4--strokes running free, but immediately 2-strokes when cutting. Release the throttle and adjust L needle CW until the engine idles fairly well, but allows the engine to 'follow the throttle'. Adjust the idle speed screw so that the chain stops turning, but the engine will continue to run. Hope this helps!
Check the air cleaner and muffler for plugging first. Turn both jet needles CW to stops (lightly), then back out each CCW 1-1/2 turns. Turn the idle speed screw CW about 1/2 turn. This is a basic setting and the engine should start and run. Allow to warm up, then pull the throttle full on and adjust the H needle CW til the engine speeds up somewhat, but is still 4-stroking. Correct setting is when the engine 4-strokes, but immediately 2-strokes when cutting. Release the throttle and allow to idle. Turn the L needle CW until the engine runs fairly well, but still allows the engine to 'follow the throttle'. Adjust idle speed screw so that the chain stops moving, but still allows the engine to keep running. Hope this helps!
Is the chain being properly oiled? You should get a thin line of oil after running the tip of the saw near to a piece of paper or cardboard for moment or two. Is the saw getting overly hot after running? Clean the cylinder and air passages with compressed air if it is. Check the muffler for any plugging of spark arrestor screen. Turn both jet screws CW to stops (lightly) then turn both out 1-1/2 turns CCW for a basic setting. Pull throttle full on (after warm up) and adjust H for high engine speed, but 4-stroking that smooths out immediately when cutting. Release throttle and adjust L for fairly smooth idle, but rich enough to allow the engine to 'follow-the-throttle'. Adjust idle speed so that the chain stops moving. Hope this helps.
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