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Carburetor Adjustment for Chainsaws Carburetor adjustment is critical on chain saws and other two-cycle engines. ... These saws have what is called a "fixed jet" which is set from the factory. ... (7) Go back to step (5) and reset the idle speed. ... NOTE: If you do not have a tachometer, set the RPM level so that the saw "four ...
Return a type A carburetor to its factory setting by turning the "H" screwcounterclockwise until it ... Where Do I Find the Carburetor on My Stihl 017 Chainsaw?
Do exactly what I say and you will save yourself money in the future
Find the carburetor... look for 2 adjustment needles. If there is a red and white plastic caps on them, remove them, throw away. Theye are put on by the factory for epa reasons only.
Have a flashlight handy... on the carburetor look for a H and an L... these are the high and low needles...
To adjust the low, which is only for idle only... start the unit up , let it idle, if it's not idling well, then adjust the L needle in quarter increments only...
The H needle you adjust while holding in the trigger while turning the needle in quarter increments...
So to start off, turn both clockwise units snug not super tight... then back both out 1 whole rotation.
This is your starting point...now you can proceed to adjust as needed....
Make sure u r not getting to much fuel. With switch off pull string twice then turn switch with throttle cable helded wide open try to start.good luck.new dose not mean adjusted good luck
on a lot of weedeaters there is a holddown nut collar that
secures the weedeater throtlle cable to the motor housing . if you removed the cable from the carbuerator and loosened this collar
you can adjust the idle speed by adjustng the collar back and forth
towards and away from the carbuerator . Simple adjustment to a major headache.
Are the jet screws fitted with slot heads or 'D' heads? 'D' heads require a special tool to adjust and are not available to the general public, so you are stuck with taking the saw to a servicing dealer for adjustment. Slot head screws can be turned with a small flat-blade driver by anyone. In case you have owner-adjustable heads, try the following: Turn both screws CW to stops (lightly), then back each out 1-1/2 turns CCW. The engine should run with this basic setting. Warm up the saw, then pull the throttle full on. Turn H needle CW until the engine speeds up somewhat, but still 4-stroking. Proper adjustment is when the engine 4-strokes, 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 so that the chain stops turning, but the engine continues to run. Hope this helps!
ther is no set setting but to get it to run so it can be adjusted. lightly close the high off then open the low about two turns. try to start if starts slowly adust the low screw till it runs normal with the choke all the way off. then start to add throttle while turning the high out till regiured rpms ar reached with no misses. this takes awhile even fo a seasoned mech and may require several attempts
The Smaller line goes on the Lower inlet tube on the carborater the other end goes to the gas filter inside the gas tank.
The Larger line goes on the upper outlet tube on the carborater the other end goes to a fitting that holds this tube from coming out on the gas tank .This tube is only for Air, it helps fill the primer bulb when pushed.
I hope this helps.
Mechs correct me if I have made a mistake.
Thaxs Jon
check the fuek lines for hole and leaks, check the fuel filter and clean if necessary. remove the carbuerator and inspect the gasket; it should be soft and flexible, if it seems hard or brittle replace it. clean the carb with carb cleaner sray (available at any local auto parts store) and compressed air. make sure you get inside the small fuel rail holes. check the primer bulb for pin holes and seating/sealed properly. if that doesn't work have the carb repaired at a service center or replaced.
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