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Stihl Chainsaw running too fast



 
 
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  #1  
Old November 2nd 11, 09:34 AM posted to alt.home.repair
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Posts: 564
Default Stihl Chainsaw running too fast

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?

Thanks

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  #2  
Old November 2nd 11, 12:47 PM posted to alt.home.repair
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Posts: 10,563
Default Stihl Chainsaw running too fast

Just a SWAG, there is a coil spring that is missing. That
pulls the trigger down.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


wrote in message
...
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?

Thanks


  #4  
Old November 2nd 11, 03:19 PM posted to alt.home.repair
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Posts: 630
Default Stihl Chainsaw running too fast

wrote in message
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 my Stihl chainsaws, choke is by moving the lever all the way down,
then next up is fast idle, then next up from that is regular idle,
then next up is off.

When it is in fast idle and you pull the throttle trigger, it snaps
from fast idle to regular idle.

To fix this problem on my saw, you replace the lever which also comes
with a metal spring loaded piece which is part of an electrical kill
switch, but that spring mechanism/switch also plays the most important
part with the fast idle release.

It can be removed on my saw by removing the carburetor cover and a
screw under the handle. Then removing the connecting rod to the carb.
Also a screw on the side for the electric switch. It snaps out and the
electric switch slides out.

You may have a older or different model from mine. Go to the following
site and ask there. Helps if you give them the model number or post a
picture.

http://www.arboristsite.com/chainsaw

  #6  
Old November 2nd 11, 08:59 PM posted to alt.home.repair
external usenet poster
 
Posts: 564
Default Stihl Chainsaw running too fast

On Wed, 2 Nov 2011 07:19:50 -0700, "Bill"
wrote:

wrote in message
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 my Stihl chainsaws, choke is by moving the lever all the way down,
then next up is fast idle, then next up from that is regular idle,
then next up is off.

When it is in fast idle and you pull the throttle trigger, it snaps
from fast idle to regular idle.

To fix this problem on my saw, you replace the lever which also comes
with a metal spring loaded piece which is part of an electrical kill
switch, but that spring mechanism/switch also plays the most important
part with the fast idle release.

It can be removed on my saw by removing the carburetor cover and a
screw under the handle. Then removing the connecting rod to the carb.
Also a screw on the side for the electric switch. It snaps out and the
electric switch slides out.

You may have a older or different model from mine. Go to the following
site and ask there. Helps if you give them the model number or post a
picture.

http://www.arboristsite.com/chainsaw


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?



  #7  
Old November 2nd 11, 09:08 PM posted to alt.home.repair
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Posts: 1,954
Default Stihl Chainsaw running too fast


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?


On the saw would be my first guess.

Steve


  #8  
Old November 2nd 11, 11:29 PM posted to alt.home.repair
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Posts: 75
Default Stihl Chainsaw running too fast

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.
  #9  
Old November 2nd 11, 11:30 PM posted to alt.home.repair
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Posts: 3,241
Default Stihl Chainsaw running too fast

On Nov 2, 2:59*pm, wrote:
On Wed, 2 Nov 2011 07:19:50 -0700, "Bill"





wrote:
wrote in message
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 my Stihl chainsaws, choke is by moving the lever all the way down,
then next up is fast idle, then next up from that is regular idle,
then next up is off.


When it is in fast idle and you pull the throttle trigger, it snaps
from fast idle to regular idle.


To fix this problem on my saw, you replace the lever which also comes
with a metal spring loaded piece which is part of an electrical kill
switch, but that spring mechanism/switch also plays the most important
part with the fast idle release.


It can be removed on my saw by removing the carburetor cover and a
screw under the handle. Then removing the connecting rod to the carb.
Also a screw on the side for the electric switch. It snaps out and the
electric switch slides out.


You may have a older or different model from mine. Go to the following
site and ask there. Helps if you give them the model number or post a
picture.


http://www.arboristsite.com/chainsaw


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?- Hide quoted text -

- Show quoted text -


That almost sounds like a Sears Craftsman style of number????
  #10  
Old November 2nd 11, 11:35 PM posted to alt.home.repair
external usenet poster
 
Posts: 13,931
Default Stihl Chainsaw running too fast

On Wed, 2 Nov 2011 13:08:12 -0700, "Steve B" wrote:

find these numbers?


On the saw would be my first guess.

Steve


.... under the saw dust - next guess.
 




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