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Knowledge You Can Build On — Est. 1998

Another Chain Saw Question

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Another Chain Saw Question

#1

Another Chain Saw Question

Jennifer@Indy.USA

>After reading Carole's post about her new saw it reminded me of a question I've been meaning to post for a few days. The other day I was using my saw to cut up some logs into bowl blanks, and when I would let off the gas the chain would still move at a pretty good clip. Not full speed but way too fast for my comfort. I knew this wasn't right so I turned it off and removed the chain cover and decided to give it a good once over. Everything looked fine...there was some build up of sawdust and the normal gunk, so I blew it all out with compressed air, put the cover back on and then it seemed to perform correctly. What could have caused that? My saw is a Stihl 025 with 18" bar. It's about 3 years old with minimal use. Should I be concerned? Take it in for a check up?

Thanks for any help....

Jennifer

Re: Another Chain Saw Question

#2

Re: Another Chain Saw Question

DaveZ

>Hi Jennifer, from what you describe you might have had some crud affecting a throttle linkage. You do need to watch it and be sure that cleaning it did actually solve the problem. If the problem reoccurs, I'd have it checked out just to make sure it doesn't have an air leak.

Re: Another Chain Saw Question

#3

Re: Another Chain Saw Question

Jorge Castaneda ~ Downeast Maine

>Hi Jen,

As Dave says, if it went back to normal after cleaning it was cru interference. If the chain still runs after cleaning, it is the idle, read your manual, and locate the screw, all you need is a small screw driver ...

Jorge

Re: Another Chain Saw Question

#4

Should it move at ALL at idle speed?

Carole in VA

>

Re: Another Chain Saw Question

#5

Re: Should it move at ALL at idle speed?

Bill Turpin in WNC mountains

>NO

Re: Another Chain Saw Question

#6

Thanks!

Jennifer@Indy.USA

>Thanks for the feedback. I'll keep an eye on it.

Jen

Re: Another Chain Saw Question

#7

No, it Shouldn't.

Jennifer@Indy.USA

>

Re: Another Chain Saw Question

#8

Re: Another Chain Saw Question

Jerry Whitaker

>Some saws, including my Echo, has a chain brake. Just push it forward and it will lock the chain but you have to release it before revving up again.

Re: Another Chain Saw Question

#9

Re: Yeah, but

Dale Stansbery

>that's a poor substitute for setting the idle properly. If the linkage binds and doesn't let the saw idle down, then there's the off switch which should be the first choice.

Re: Another Chain Saw Question

#10

Re: Another Chain Saw Question

Doug Trembath

>If the saw has been running properly, and all of a sudden doesn't want to rev down, I'd have a good small engine shop look it over, Jen. I would hesitate to go adjusting the idle speed for a problem that crops up, since the adjustment shouldn't just change willy-nilly. It's probably just buildup, either in the linkage, as suggested, or in the clutch area, not allowing it to slip. If it happens again, I'd recommend you shut it down, and let a good mechanic look at it. These little engines are supercharged in order to put out the horsepower they do, and carburetor adjustment is critical to proper operation.

Doug Trembath

Studio in the Woods

Re: Another Chain Saw Question

#11

NO

DaveZ

>

Re: Another Chain Saw Question

#12

Re: Another Chain Saw Question

MP Wall

>I use a 20+ year old McCulloch 10-10s and if I let off the gas and the chain is still rolling while the motor is idleing I know it is time to tighten the tension on the chain. My chains expand with the heat and get a little loose after coming up to heat. That is why, I think, a lot of old chainsaw users start and then hit the gas on a saw. I usually rev it up and get the chain warm and then tighten it up and then restart and get to work. Newer saws may not have this problem though. MP Wall

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