TEK Indoor Environmental

* DUCT CLEANING * WELDING * HVAC REPAIR * AIR QUALITY TESTING * MOLD REMOVAL * KETCHIKAN ALASKA *

SCREW(H)—CAUTION!

Adjustment of the high speed adjusting screw(H)not only affects the power output but also the maximum off-load engine speed. If the setting is too lean (screw turned too far clockwise), the maximum permissible engine speed will be exceeded. This can cause engine damage, brought about by lack of lubrication and overheating in particular. Corrections to the setting of the high speed adjusting screw may be carried out only if an accurate tachometer is available to check the maximum engine speed of 13,000 rpm (with bar and correctly tensioned chain).

When the engine is tested at the factory the carburetor is set to obtain a slightly richer mixture to ensure that the cylinder bore and the bearings receive additional lubrica­tion during the break-in period. This setting should be left as it is for the first three tank fillings. The high speed adjusting screw may then be turned no more than 1/4 turn clockwise (leaner mixture). Caution: The engine’s maxi­mum permissible rpm must not be exceeded! Note that even slight alterations on the adjusting screws have a noticeable effect on the engine’s running behavior. Only carry out carburetor adjustments after cleaning the air filter and warming up the engine.

If you have no means of checking the maximum engine speed, do not set the high speed adjusting screw (H) any leaner by turning it (clockwise) beyond the basic setting below!

Safe Basic Setting For Screws (H) & (L)

Carefully screw the two adjusting Screws (H) & (L) down onto their seats (clockwise). Then:

High speed adjusting screw (H): back off 1 complete turn

Low speed adjusting screw (L): back off 1 complete turn

Basic Setting For Screw (LA)

Turn idle speed adjusting screw (LA) until the chain stops. Then turn counter-clockwise one quarter of a turn.

Fine Tuning – Screw(L)

Erratic idling behavior; poor acceleration

Idle setting too lean; turn low speed adjusting screw (L) counterclockwise until engine runs and accelerates smoothly. Now readjust screw (LA).

Exhaust smokes at idle speed

Idle speed setting too rich; turn low speed adjusting screw (L) clockwise until engine speed drops. Then turn screw back one quarter turn and check that engine still accelerates smoothly when you open the throttle. Now readjust screw (LA).

Stihl Chainsaw Troubleshooting Guide

1. Compression Test – Can you lift the saw off the ground with the pull rope?
2. Fuel Test- Remove air filter and cover and spray starter fluid in the carburetor and try to start.  Use a 50:1 fuel mixture with premium fuel
3. Spark Test – Remove spark plug clean with solvent & wire brush. Reconnect plug wire and let plug hang close to engine block (away from any gas) pull starter rope and look for spark, dim lighting makes it easier to see. If no spark replace plug and try again. Check off/on switch and wire coming from coil. If still no spark replace coil. (Older saws clean and adjust points first)
4. Saw runs on starter fluid (see reply from David below) not on gas in tank. Check gas tank for old gas, empty old gas look for “syrup gunk” in the bottom of the tank, if present clean and rinse several times until clean (I use carburetor cleaner & gas and any brush that can reach in and not melt) Try to start with fresh gas mix. If it doesn’t start check and replace fuel line and pick-up. If it still doesn’t start remove carburetor and check manifold boot (tube between carburetor and engine) replace if needed and try to start. If it still doesn’t start remove carburetor, disassemble and clean carburetor,  you may have to disassemble and soak in solvent over night try not to get solvent or carburetor cleaner on gaskets. Check gaskets, diaphragm gasket should be smooth and puffy not wrinkled or wilted if in doubt replace. Carburetor kits are around $8-$15 and include all gaskets, needle and spring. Reassemble (making sure all gaskets are positioned properly) and try to start if it still doesn’t start replace carburetor.
Stihl Chainsaw Care and Maintenance Guide

Thanks Partner. I’m rocking & rolling again
One cord at a time

Stihl 009, 009L,011, 011T,012, 017, 018, 018C, 019, 019T, 020, 020AV, 020T, 021, 023, 024, 025, 026, 026 PRO, 028, 029, 034, 036, 036 PRO, 036 QS II, 039, 044, 046M, 066M, 088M, MS170, MS180C, MS191T, MS192T, MS200, MS200T, MS210, MS250, MS260, MS260 PRO, MS270, MS280, MS290, MS310, MS360, MS360 PRO, MS360 QS II, MS361, MS390, MS440, MS460, MS660, MS880, HT100, HT101, HT70, HT75 super Stihl carburetor adjustment instructions Carburetor adjustment on stihl Chainsaw carburetor settings Stihl chainsaw carburetor adjustment repair? How do you repair Stihl chain saw carburetor? How do you adjust a stihl chainsaw carburetor? What are the carburetor settings for a Stihl 025 timber beer? What is the tuneup specs for a stihl 024 chainsaw? What is the carb settings for a stihl 024 chainsaw? What are the carb settings for a 041 stihl chainsaw? Stihl chain saws Procedure for carburetor adjustment? How do you adjust the carburetor on your stihl chainsaw? Show picture of carburetor adjustment screws in stihl chainsaw? What is the gas to oil ratio in a 2 stroke Stihl 024 chainsaw motor? What are the carburetor settings for a sthil woodboss av 024 chainsaw? What is the carburetor air high and low for a mcculloch chainsaw?