What’s wrong with my #### chainsaw?
CloudHidden
| Posted in Tools for Home Building on
I’m having a
weekend where absolutely not one
thing is going
right. Aaaarrrggghhh. My Stihl chainsaw isn&
#39;t
working now. I can&
#39;t get any
work done and it&
#39;s
me off. So this
chainsaw will start. It will idle. It will accelerate. But when the trigger gets beyond about half, it&
#39;ll stall. Every
time. Fluids are fine. Should be the right gas/oil mix. Have bar oil and it sprays out as the chain turns. Chain is not too loose and not too tight. It&
#39;ll hold idle indefinitely and run with some acceleration, but not full trigger. What the heck does that indicate?
I’m gonna waste this entire
weekend on
that doesn&
#39;t work…I can see it now…
Replies
Checked the air filter lately? Good ####luck<G>
gas flow restricted or ckocking out...
hard to restart...
does it sputter out or quickly die...
Easy to restart. Doesn't sputter. When I move the accelerator trigger beyond half-ish (with good rpm's) it dies quickly.Duane, if I even think about pulling the carb apart today, I know just what's gonna happen, which is something, anything bad.
check yur chockie setting..
My little saw had a filter/screen in the gas tank. It had something in the line.
I think fer sure you can handle it..just 4 screws.
Fish ariound in the fuel tank and pull out the line with the filter attached to the end...some are sintered bronze and can be blown out with compressed air or just replace it. Some dust is getting in the fuel and if it cleared the filter due to a cracked line ( common as hell) the screen in the carb catches it.
The carb is EASY to do, no parts except the cap and gasket...just be sure to get it back on where it belongs, some are so square you could rotate it off axis.
Imerc means make sure the choke is off I think. Spheramid Enterprises Architectural Woodworks
The Morphine s eems to do no good at all..I'd run all the way if I would not fall...
cloud, this happened on my brush saw. Hi alcohol content in the gas softened the fuel filter hose in the gas tank. Accelerated draw collapsed the line, no fuel. If the carb is clean, you might need the new fuel line/filter in the tank.
I got your pkg.
Remodeling Contractor just outside the Glass City.
Quittin' Time
Edited 5/28/2005 4:46 pm ET by calvin
That damn Hi alcohol content really makes for some havoc huh? LOL Spheramid Enterprises Architectural Woodworks
The Morphine s eems to do no good at all..I'd run all the way if I would not fall...
All the lines were in good shape.Problem's solved, and rather simply, too. In the online manual, they show an adjustment for low idle, but that was fine, so I didn't mess with it. They did not show a high "idle" adjustment. But I found a screw marked H and guessed that's what it was for. At half throttle, it was sounding like the proper RPM's, so I adjusted the screw till it gave the same RPM's but at full throttle. I'm guessing that that was allowing excessive fuel into the carb (which is why some of youse mentioned the choke (which was set right). I guess the screw just recalibrated the amt of fuel at full throttle.Now I got a new problem...I'm tired and I need a new excuse to stop work. Isn't this labor day coming up? Can I take the day off?Thanks for all the ideas!
You can 2 days off with pay...good fix there Jim. I stay away from them screws usually..they can be a nightmare. Spheramid Enterprises Architectural Woodworks
The Morphine s eems to do no good at all..I'd run all the way if I would not fall...
Well jim, you can now assume the position with the hi alcohol content.
We're gonna go whack 'em.Remodeling Contractor just outside the Glass City.
Quittin' Time
My limbing saw is a stihl 020/ms200 and at about six years old it developed some quirky fuel system problems. It would start and run but in a very erratic manner that no manner of adjustments would compensate for.It turned out to be an "impulse line" that, as I recollect, supplies pressure either to the fuel tank to force fuel through the fuel line or it is some sort of fuel pump. (When it comes to tearing down the saw I take it to the shop so I am trying to recite what they told me several years back).Anyhow my point is that I would be suspicious if a saw had been running well and suddenly required substantial adjustment of the mixture screws to run properly. If it keeps acting up I would look into the condition of all the rubber hoses (as another poster mentions)Another thing to consider in adjusting the high speed mixture is you can lean it out to the point where it will run too hot or overrev some saws. I think to do it properly you need a tachometer.Glad to hear you got it back in action.karl
I've got a Husqvarna 61. It's at least 10 years old. Probably significantly older (I bought it rather used in '97). Over the years it's cut down, limbed, and corded literally hundreds of hard wood trees (Alaskan Paper Birch) countless old growth Pine, Spruce, Alder, even some 30" diameter Hickory, Live Oak, and Pecan; I've cleared completely wild, forested land in Alaska, 2-3 acre lots, alone with it..trees, shrubs and brush, live, long dead, or unknown...Sheared off many a stump below grade, ate rocks and dirt, cut up const. refuse, quartereed up burn piles using it as a light-saber on hi RPMs, had it caught in a kerf and flung 20' in the air on a tree that back-fell--landed nose down still running!I've gone through numerous chains, one bar (I've always used a 20"), a muffler, I think I recall I dickered with the Hi and Lo carb adjustment screws once many years ago--don't know if I accomplished anything. Never pulled the spark plug out. Don't even know if it has an air cleaner (where the hell is it?). It's never failed to start...exactly on the 3rd pull (two with the choke on, then one with it off after it catches a bit). Never lost idle. Never failed me. I WANT it to die so I can give it some proper TLC (sheesh, I have a Husky sales and service shop right down the road now!). But it won't. It won't fail me. My saw loves me.Give your saw to the needy. Buy a Husky.
Why not use the day off to practice up on your ranting/ cursing
such as; ################ could be ..#^^%&*&&^*%^#^%.
or..##### could simply be.. &*&^%%*&)((**&&^
sounds better too.
Sounds like you've already been into that hi alcohol, and you want a really big vacation. It's Memorial Day, not Labor Day. Back to Work!
Don
Get to the carb, take out the 4 screws holding on a cover cap..do not loose the damn things..carefully separate the cover WITH the gasket from the carb body.
Peek untill you see a small (1/4" diam.) hole where a little itty bitty screen lives..use your trusty swiss army knife ( that ya used to open the carbs straight slotted screws, that are aluminum and can't be found with a magnet when ya drop them in the grass) and remove said screen and blow on it to clean it from the gunk that escaped the fuel filter because the fuel line hose is cracked and needs to be replaced..
I am haveing the same kinda day.
The Morphine s eems to do no good at all..I'd run all the way if I would not fall...
Sounds like my saw several weeks back. I couldn't find anything either. Took it in to a shop and it turned out to be a pin hole in the fuel hose. Looked like the rubber had rotted out at a slight bend point. Saw was less thean two years old, defective rubber? Check the fuel filter as well, sometimes they varnish up from non use.
See! You shoulda bought a Deere.
-BossHog
Not familiar with your saw but you might look closely at the priming bulb, assuming it has one. A tiny leak in this can cause the saw to have similar issues as it cannot develop the vacuum necessary to draw the gas into the engine. A slightly larger hole will stop the saw from starting as it defeats both the priming and any draw of gas at even low throttle settings.
One trick to check this is to smear a heavy coat of thick grease onto the bulb. The grease will temporarily solve the problem. This trick once got me through a job by keeping the engine running for another hour.
Similarly a loose, swollen or cracked gas line will cause a similar problem.
I ran into a similar problem with a different power tool but this may help.
If your Stihl (I own one) has an exhaust with a mesh screen, carbon buildup on the screen can cause the symptom you're describing.
Brush it off so the screen is clear.
Worth checking and it's easy to access.
It should be a metal housing with louver-like openings and inside this exhaust doohickie is probably a screen that serves as a spark arrest.
Carbon exhaust soot can clog the screen.
This is a fairly common problem that's easily overlooked and often blamed on the fuel system.
Had a Stihl same problem, never fixed it, chucked it, literally.