20 Most Recent Stihl TS420 Questions & Answers

Primer bulb feed must be connected to fuel tank weighted filter in tank - other line goes back to top of fuel tank - check that the fuel line is not broken between primer bulb and fuel filter in tank - sometime line breaks off at top of fuel tank inside which drops filter to bottom of tank and thus disconnected from primer bulb - replace with new fuel line if broken.

Stihl TS420 | Answered on May 19, 2019

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    Stihl TS400 / TS420 Ignition Module Repair - YouTube

    ? 7:06
    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

    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 ...

    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

Stihl TS420 | Answered on Feb 08, 2016

possible over tightened and cross threaded

Stihl TS420 | Answered on Mar 07, 2015

Face toward the exhaust port

Stihl TS420 | Answered on Aug 17, 2013


Stihl Garden | Answered on Jan 13, 2021

There is no absolute requirement to use Stihl fuel though they claim better results, something lots of users agree with.

I suggest you read the manual again to ensure you have exactly followed the instructions. If you did and it won't work there is cause to return it to the dealer. While an older machine often needs fiddling with a new machine should not.

One thought - if the dealer's demonstration was very short so the machine did not warm up thoroughly, it is possible that fouled the spark plug and that would serve to make restarting difficult. It would be wise to check the plug and ensure the spark is ok...

Stihl Garden | Answered on Aug 14, 2020

Yes it is commercial blower

Stihl Garden | Answered on Apr 30, 2020

One wire is ignition module kill (primary of a magneto) and the other is ignition module frame (engine block).

The two wires run separate to the kill switch which is a momentary single pole.

Stihl Garden | Answered on Apr 24, 2020

start with a tune up and a carb rebuild test cdi and clean as well

Stihl Garden | Answered on Apr 07, 2020

More likely the starter recoil is binding.

Stihl Garden | Answered on Mar 19, 2020

Chec utube or buya clymer manual ...gottools

Stihl Garden | Answered on Jan 13, 2020

make sure your air gap from the coil to the flywheel magnet is .010. if it is then take the ground wire off the coil and see if you have spark then. if you do then your ground wire is grounding out somewhere. process of elimination form the coil to the switch.

Stihl Garden | Answered on Dec 28, 2019

Possibly fuel tank not venting properly. See recall.


Stihl Garden | Answered on Dec 14, 2019

Numerous women question how they could shrink fibroids naturally in the estimate to either steer clear of surgery or to fibroids home treatment cozy by themselves.

Stihl Garden | Answered on Dec 05, 2019

Set the gap between coil and flywheel to 0.010 inches, if possible disconnect the stop wire from coil to eliminate that part of the circuit. If spark, reconnect stop wire and check again with stop switch in the on position, should still have spark. If not there is a short in the stop circuit.

Stihl Garden | Answered on Oct 31, 2019

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

Stihl Garden | Answered on Oct 30, 2019

Check the ground wire on your coil and see if it is loose or well grounded...

Stihl Garden | Answered on Oct 29, 2019

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did not remove carb somebody else did

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