SOURCE: removing handlebar on stihl ms 270 chainsaw
you have to take the top cover off of the engine and then remove the tab that holds the bushing in place alongside the engine. if you just start prying on the plastic plug from the outside of the handle you will damage the retainer. that holds it in place. If you have already done this, there is a solution.
SOURCE: i have a stihl 021 chainsaw that will crank and
For the 021...on the muffler, there is a spark arresting screen, this is to prevent sparks from coming out of the muffler. It is common for this screen to become clogged with carbon from the engine. You will need to clean/replace this screen in order for it to run correctly.
SOURCE: I have a Stihl MS 210 C chainsaw that I cannot
take the spark plug out and dry the plug, pull the motor thru a few times, then reinstall.
Make sure that the on/off switch is in the ON position.
If there is a start position for the throttle with a latch to hold it in place, set it.
Pull thru, if nothing, choke full once and then off again..
K
SOURCE: Stihl ms 290 chainsaw. Clutch oil pump is this
The oil pump is behind the clutch drum. The drum is a left handed thread. HTH
Lou
SOURCE: tunning specification for a stihl 028 chainsaw?
I'm not sure there are any "endorsed" tuning specs from Stihl as weather, temperature, fuel quality etc all contribute to engine performance.
Pictures of all types are all over the web.
As for the carb tuning procedure, maybe I can help?
Start with fresh fuel, all filters clean, and bar and chain installed. Also, fill the chain oil tank with bar/chain oil and VERIFY that the chain oiler works properly.
Initial fuel mixture settings (the H and L screws) should be 1.5 - 2 complete revolutions counter clockwise from lightly seated. Sight the carb's throttle plate and adjust idle screw counter clockwise until the plate stops moving.(Throttle closed completely.) Then go back clockwise 3 complete revolutions. This will produce an acceptable startup condition on a HEALTHY saw.
Clamp the bar in a STURDY bench vise and roll the chain with the shank of a screwdriver to verify it is clear. BE SAFE!
Choke the saw and pull the starter rope until the engine "burps".
NOTE: If no burp after 6 pulls, stop! Something is wrong.
After the burp, set choke to half and pull starter until it runs. The settings I gave should produce a slightly rich condition and a slightly high idle. (Chain will be in motion!)
Blip the throttle trigger and idle it down just enough to keep it running during the tune procedure.
Step 1) Using the "L" screw (closest to the engine), turn it clockwise until the engine smooths out or possibly increases RPM. Back it out slightly until the engine has a slight "LOPE" sound to it. (Like a drag car on nitro).
Step 2) Accelerate the engine to full throttle and go to the "H" screw (closest to the air filter) and slowly turn it clockwise and note the RPM increase. There will come a point when the saw will "Top-Out" and loose power. Not even enough power to turn an maintain empty chain's RPM! Go back counter clockwise to the edge of that point, and counter clockwise another fourth (1/4) revolution.
Step 3) Idle the saw back down. Again go to the "L" screw and repeat Step 1.
Step 4) Repeat Step 2.
Step 5) Idle the saw down until the chain stops moving completely. NOTE: Don't settle for a "crawling chain" condition. If the steps above are performed well and all else is healthy, you should be able to idle the engine down to a ridiculously low RPM and it will not shut off.
Hope this helps,
Dolf-
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