It's an older saw I bought at a garage sale. Runs well, except it
runs way too fast. There is no idle when I release the trigger.
However, if I push downward on the trigger button, it slows down to
idle. In other words, the problem is in the trigger itself, not a
carb adjustment screw.
My question is what is causing the trigger to not slow down. It's in
the handle, so I'm not sure how to even get to it. When I remove the
top air cleaner cover, I can see the rod that goes to the carb from
the trigger, and when I apply downward pressure on the trigger that
rod is pulled back and the saw slows.
Is this a common problem on these saws? How do I fix it?
On Wed, 02 Nov 2011 02:34:04 -0600, firstname.lastname@example.org wrote:
I don't know which direction is "downward" but if it's the opposite
direction of "cut harder", it might be a spring. either in the handle
or on the engine. It might be broken or unhooked from whatever it
Thanks for the info. My saw is called the "Farm Boss". That's the
only means of identification I can seem to find. Where the heck is
the model and serial number? That plate on top that says "Farm Boss"
is barely readable, lettering is worn away. I was barely able to make
out those words. I did find a number stamped in the casting right
below the edge of the removable cover over the air cleaner. That
number is 6361415. That's all I can find after carefully looking over
the whole saw. (Of course there are part numbers on individual parts,
such as that air cleaner cover, and they all seem to begin with 9 1110
with more numbers after that.)
I noticed that the stihlusa.com site has downloadable manuals, but
first I got to know the model number for this saw. Any idea where to
find these numbers?
The "Farm Boss" is an 029 -- or Model 29 -- depending what decade.
It's a "consumer saw," meaning there is a bit more plastic, and it's a
bit more clunky than a pro model.
But, it is actually a decent saw, and a pretty good workhorse around
the house -- or "farm."
As for your problem, I'd think I'd run a tank of non-ethanol premium
gas, with some Seafoam fuel treatment in it, just for the heck of it.
I have a suspicion that might help. It won't hurt.
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