Question about Stihl 038av Case Buffers Caps / Plugs 2 Screws 038 Av 1121-790-9912 9909 Gm

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Stihl 038 super av starts hard, once started runs great till its warmed up then dies and wont start

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Check the seals on the crankshaft for a leak and the ignition module for a loss of spark as it warms up.

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Posted on Jan 18, 2013


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Posted on Jan 02, 2017

  • 1746 Answers

SOURCE: stihl 023 trouble starting & running

Hi, Replace with correct sparkplug. You have a bad plug replace it and you're good to go.

Posted on Mar 11, 2012

  • 186 Answers

SOURCE: Stihl 028 woodboss runs fine for a tank of gas.

new air filter or wash it out with petrol to remove oil from the filter

Posted on Aug 04, 2012

  • 1 Answer

SOURCE: have stihl O25 chainsaw, starts, runs about 5

hey have the same o25 stihl,great saw when their working right.have had to replace fuel line to carb 5x over 7yrs.hairline crrack and it will **** air and conk out in 2-5 seconds.also there is a pulse line to carb which can also crack.if you have good spark at plug its likely a fuel delivery problem. collin

Posted on Jan 15, 2011

  • 35 Answers

SOURCE: My Stihl MS280 has to

Taking into account that you have corrected any other deficiencies, this unit should have electronic ignition. If you experiencing run time issues, seek an authorized sthil dealer for repair.

Posted on Aug 25, 2011

  • 2239 Answers

SOURCE: 029 stihl wont start

Disconnect the stop switch to rule out a problem here, if there is still no spark with the plug out and earthed against the cylinder, then it sounds like a replacment ignition unit is required

Posted on Nov 25, 2012

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1 Answer

What carb fits a 038 av stihl

google --stihl carby for model 038 and a list will come up
look on the carby as it will be either stihl or yamma as stihl owns yamma carbys

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1 Answer

Starts right up but once it warms up it dies have messed with the air gas screws that's fine don't know what the problem is

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Re: Stihl 038 Mag AV. When following the operators manual starting for a cold start, my saw can a be very ugly beast. Quite often it will misfire and the starting cord will recoil so violently that it...

I would check the magneto key in the crank,could be sheared,allowing the timing to advance causing the firing of the spark before the piston reaches the top,hence the violent pullstart

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Why does my 93 Caravan Start fine and run great till it warms up then dies and wont start untill it cools back down.

I had the same problem a few years ago and it was the coil pack breaking down. If it starts missing before it dies id get a new coil pack. Before u buy a coil pack you need to get it warm again and just before it dies look underneath the vehicle to see if the catalytic converter is starting to get hot, if it is hot and usually getting red hot, its stopped up.It will fool you in to thinking that the coil is bad.

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The KM90 is a 4 mix engine and regularly needs the valve clearance tightening up, remove the orange housing, under there you will see the rocker cover, held on by 1 screw. The valve clearance tool can be bought from your local dealer or online.

Jun 30, 2012 | Stihl Garden

1 Answer

Fuel Mixture Ratio Is it - 25:1 40:1 50:1

not sure if yo are changing the jets out but if your using the original screws and jets screw both screws in till they stop then turn 1 and a half turns out they try starting if it kicks and won't run then turn each screw another 1/2 turn out try starting if it runs rough adjust the gas jet a little bit till it runs smooth once it warms up give it full gas and you should get just a slight puff of black smoke to be set right, if it's too lean it will get hot and will be hard to start if it dies, if that happens then give it extra gas. once warmed up it should idle without dyeing if it dies adjust the idle screw up 1/4 turn at a time till it runs at idle without holding the gas trigger, be sure you replace the in line fuel filter and fuel line first then clean the air filter before doing any adjustments. most problems are caused by plugged fuel filter due to ethanol in the gas.

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2 Answers

Stihl FS 85 stalls and wont start after about 20

v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} b\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} 285 7772400 10058400 259 261 257 280 262 283 1 06WOHFQ%ZQT6,!3GM2\Y["P 5 1 0 286 False 0 0 -1 304800 243 True 128 77 255 3175 3175 70 True True True True True 282 134217728 1 3 -9999996.000000 -9999996.000000 8 Empty 16711680 52479 26367 13421772 16737792 13382502 16777215 Bluebird -87325200 -87325200 (`@````````` 267 263 5 No. It sounds a too simple, but try this: The next time you run it and it starts to die, loosen the gas cap. It should start to run again. This means that the gas cap is clogged up with dirt. It is not vented properly, causing the carburetor to not get gas.


Jun 10, 2009 | Garden

1 Answer

Dies after running

When it won't start does it have spark? (Ignition module)

Apr 08, 2009 | 1989 Pontiac Firebird

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