Question about Stihl Carburetor Fr Hl Ht Km 70 75 80 85 4137-120-0608

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My STIHL ht 131 pole trimmer's chain will not turn when the engine is revved up to cut.

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  • Gary Boyce
    Gary Boyce Oct 17, 2013

    Did some trouble shooting, and found the drive slips out of the clutch.

  • Gary Boyce
    Gary Boyce Oct 17, 2013

    How do I stop that from happening?



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Have you tried removing the chain to see if the head unit itself turns?

Posted on Nov 10, 2013


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Hi Little Bird
Chances are that the clutch needs servicing or replacement.
Here's a link that explains:

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2. Drive shafts have become detached from drive or broken.
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Ht 131 shaft keeps slipping out of cutting head

make sure the gear hed is engaged on both the outer shaft and drive shaft at both engine and cutting head end. Check the square drive section that is in the plactic moulding hasnt been pushed too far into the shaft meaning its not engaging properly.

Apr 15, 2014 | Stihl Garden

1 Answer

Stihl HT 131 chain will not turn.

the motor is stuck, because of the crank... you have to open the side where the pulley is disassemble spray it with wd40 and with socket begin to turn it until it free up. then reassemble..

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1 Answer

Ht 131 chain does not engage

More information please. Where will the cain not engage in the bar sprocket or on the drive sprocket

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1 Answer

I have a stihl pole saw ht101. The saw starts fine and runs for a minute or two, then loses power. What ido I check?

If you mean the engine is losing power your more than likely have a restriction in the exhaust. The sut from the two stroke mix builds up and restricts the exhaust gases. Hence looses power. Happened to me lots of times

Aug 02, 2012 | Garden

1 Answer

Fuel requirements for a Stihl 131 Polesaw with the 4mix engine?

hi Ray

For your polesaw Stihl HT 131 with 4 mix engine you need a fuel/ oil mixture.The lubrication of the engine is realised through the fuel/ oil mixture(you need a superior quality of the oi for the mixture ).Buy it from an authorised Stihl dealer shop.Any other oil is not needed on the 4 mix engine.
best regards savumihai71

Dec 05, 2008 | Garden

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