My stihl 031AV chainsaw bogs down when pulling trottle

Hello again Jack!

Did you fix the Ryobi?

What is the minimum compression for my STIHL chainsaw? Generally the minimum is 110 lbs. of compression.

Chainsaw FAQ - STIHL

What is the correct spark plug gap for my STIHL trimmer, chainsaw, or blower? The correct gap setting is 0.020".

Chainsaw FAQ - STIHL

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According to Stihl's engine service manuals, when the engine has no spark or a dramatic, sudden loss in power, the problem could lie in the ignition system. The ignition system ignites the fuel in the engine for proper combustion. When the spark isn't firing correctly, an influx of gas can bog the engine down or cause it to not start at all. Since you are dealing with potentially lethal high voltage, extreme caution is advised and safety gear should be worn at all times.
first Slide the rubber spark plug connector off of the spark plug. On most Stihl's this can be accessed from the top of the engine, underneath the chain brake handle. Unscrew the air filter cover and remove it, if you can't see it on top of the engine
then Insert the socket wrench onto the spark plug and remove it from the engine. Discard the old spark plug and replace it with a new, identical spark plug, which will be recommended in your operator's manual. Make sure the spark plug is gapped according to your manual's specifications or else the engine won't start.
after that Turn the ignition switch to the "On" position. Insert the spark plug into the rubber connector. Make sure the chain brake is disengaged by pulling back on the black chain brake handle, which runs atop the saw's engine.
Hold the rubber plug and spark plug, with gloved hands, about 1 to 2 centimeters from a metal point on the engine block. Wipe any flammable gas or oil from the metal spot on the engine with the rag. Tug on the starter cord and look for a blue spark across the "hex" part of the spark plug,Check to be sure the wires leading to the "On-Off" switch aren't tangled or touching a metal point on the engine if there is no spark, Replace any wires if they are damaged or corroded

Search Results

Stihl TS400 / TS420 Ignition Module Repair - YouTube

? 7:06
https://www.youtube.com/watch?v=AvPv88SELXs
May 1, 2011 - Uploaded by donyboy73
Learn HOW TO REPLACE The Ignition Module in your StihlTS400 / TS420 ... I have a homelite 33cc Ranger it has no sparkat the plug but if I put a ... a good spark and there is fuel getting into the cylinder head also what are ...

All comments on Stihl TS400 / TS420 Ignition Module Repair

https://www.youtube.com/all_comments?v=AvPv88SELXs&lc...
Donyboy73, I hava a Stihl TS 420 and just replaced the pull rope (not sure what's ... a good spark and there is fuel getting into the cylinder head also what are your ..... Hi mate, i have no spark to my plug?? i have tried a brand new plug and still ...

Small Engine Ignition: Ignition Wires, Chainsaw Spark Plugs ...

www.hlsproparts.com/small-engine-ignition-parts-s/149.htm
66 results - HL Supply has the small engine ignition parts that will get your ... parts right here: ignition wires, chainsaw spark plugs, ignition coil sets, ... Please don't hesitate to contact us if you have any questions. ... Stihl TS400 (3-bolt old style), TS460 ignition coil with wire and cap ... Fits: Stihl TS410 and TS420 cut off saws

Adjust the high speed screw on carb

Install a new spark plug

Use fresh fuel

Remove the worm, sealing ring and washer, loosen the pan head screws on the oil pump and replace. Check if the gasket is re-usable.

0.5mm or .02"

Plug may have weak spark, as odd as it sounds it does happen, try fresh plug.

clean the carburetor, replace the air filter and check the spark plug gap. .

Check the pole gap on the ignition module to the flywheel magnets. Use a thin business card for a gauge. If it has the correct gap and you have tried a new spark plug, then the module itself is likely failing. Hope this helps!

Most likely the fuel filter in the tank is plugged you can get it out with a pair of needle nose pliers and buy at any saw shop. Hope this helps.