Question about Garden

1 Answer

How to test decompression valve stihl chainsaw

What is a faulty decompression valve ,how is it faulty,

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 13 Answers

Sounds like a valve that releases some or all of the compression during starting, to make ripping the cord easier. When the engine fires it is supposed to close automatically & allow the engine to start. They can become faulty mechanically (broken spring) or they can become clogged with combustion junk, esp if run the oil too rich. This will make starting difficult or impossible. Best fix is to replace with new or re-manufactured if you can get.

Posted on Apr 01, 2014

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad
  • 82 Answers

SOURCE: where is the spark plug located in a stihl 026

Hi,
It is in the circled location on the image below

e935d45.jpg


This came from the manual located at http://www.stihlusa.com/stihl_ownersmanuals/026_Manual.pdf

If this helps please leave feedback


Posted on Feb 04, 2010

Dolfoff
  • 148 Answers

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-

Posted on Oct 13, 2009

  • 2692 Answers

SOURCE: 0340 AV stihl chainsaw won't fire

Spray a little starter fluid down the carburator . It is starts then is is a fuel problem. Most likely a gummed up carburator. Remove and clean . 

Posted on Jan 24, 2009

SOURCE: stihl 009 chainsaw

http://www.ultimatehandyman.co.uk/manuals/stihl/19.pdf
manual above it is all in there..

Posted on Mar 26, 2010

  • 1 Answer

SOURCE: how to find date of manufacture for stihl chainsaw

call up Stihl USA and ask them when your saw was manufactured. Tell them you bought it used and give them the serial. They told me!

Posted on May 11, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Model 026. when trying to cold start, why does the compression button pop out without starting?


Its ment to.!!! that's the job of a decompression button.

Procedure:
1.push on off switch into full choke position, depress the decompression button.
2.pull the saw over until it 'fires' once.
3. the decompression button would have popped back up, click the on/off switch up to half choke.
4.pull saw over and it should fire up, revving.! blip the throttle to return it to tick over.

Mar 11, 2016 | Stihl Garden

1 Answer

Hard to crank when cold a br600 stihl


With these big boys, stihl has a decompression valve on the side of the manifold so it's easier to pull start. What you wanna do is spray some gum out into the plug hole then reinstall the plug, squirts some in the carb as well... If your unit starts up and runs for a few seconds and cuts out, your carburetor is done.

Basically it's like this, you can adjust the carburetor by the two needles on the carb. The H and the L... the low you adjust at flat idle and the high you adjust by keeping the throttle ppen

Oct 07, 2015 | Stihl Garden

1 Answer

How to remove sprocket and clutch from ms250 stihl chainsaw


Removal>
  1. Remove the clutch drum/chain sprocket
  2. Remove the air filter
  3. Take out the shutter.
  4. Pull boot off the spark plug.
  5. Unscrew the spark plug.
  6. Close the decompression valve, if fitted.
  7. Push the locking strip 0000 893 5903 into the cylinder. (Piston Stop)
  8. Unscrew the clutch from the crankshaft clockwise (left-hand thread).

Installation>
  1. Screw on the clutch and tighten down to 50 Nm (37 lb.ft).
  2. Install the clutch drum / chain sprocket .
  3. Remove locking strip from the cylinder.
  4. Insert spark plug and tighten down to 25 Nm (18.5 lb.ft).
  5. Fit boot on the spark plug.
  6. Fit the shutter so that its lugs engage the recesses in the handle housing.
  7. Install the air filter

Feb 22, 2015 | Garden

1 Answer

Where is the decompression switch on a 075 stihl chain saw ?


If your unit is equipped with a decompression or it will be on the top of your saw. a little black button that you pull up or push down

Oct 15, 2014 | Stihl Chain Saw 051 075 088 090 +

1 Answer

Put new decompression valve in , when pulling the pullcord there's no compression ,it justs jams


Check to make sure the old valve didn't have part of it fall down on top of the piston. I just had that exact thing happen to a TS400 in my shop for service.

Jul 12, 2011 | Stihl Ts 410 420 Cut Off Saw...

2 Answers

My stihl ts 760 , no gas going to carb. I have changed all filter , fuel, air, all gaskets , all gas hoses, new decompression valve, plug, cleaned carb. was working before this . Any ideas?


Clean it again you missed something or maybe a gasket is on wrong. If you went through all of that it should run fine. Stihl usually rebuilds and runs well. Slow down turbo maybe you got a little ahead of yourself. Good Luck...

Apr 02, 2011 | Stihl Chainsaw Cutoff Saw Flywheel 08 S...

1 Answer

Repair manual for Stihl TS 760 concrete saw


my decompression valve camp lose how can i get to put back in

Oct 15, 2010 | Garden

1 Answer

Hi there; my stihl ts 420 does not start easily


replace the decompression valve. also check for carbon buildup on top of piston. usually when a saw stops on its own after 5 min or so.... the piston and jug are scored and need to be replaced.

Jun 16, 2010 | Stihl Ts 410 420 Cut Off Saw...

1 Answer

How to adjust chain bar oiler


The Stihl 026 PRO does have an adjustable oiler and it is located on the bottom of the saw just below the clutch drum.
Stihl also builds an 026 "Standard" without the adjustable oiler, however, the hole location for adjustment is still there.

The 026 PRO will also have a decompression valve on top of the saw to make the rope easier to pull during startup. If you have the DECO valve you should also have the adjustable oiler. Hope this helps.

Sep 26, 2009 | Standard Oregon Chainsaw Chain For Stihl...

Not finding what you are looking for?
Garden Logo

Related Topics:

246 people viewed this question

Ask a Question

Usually answered in minutes!

Top Garden Experts

Dennis Key
Dennis Key

Level 3 Expert

2478 Answers

roeb

Level 3 Expert

708 Answers

john h

Level 3 Expert

15427 Answers

Are you a Garden Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...