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Husqvarna 137poorly works at full throttle

Hi there,
I have a H-137, and for two years it worked perfectly. This year when I started it, at the idle it worked perfectly, but when I tried to saw and pressed the trigger, the saw began to gain speed much slower than usually, and then it gained speed (seemingly) much higher speed than it's nomal, and it refuses to saw -- when the chain contacts the log, the saw stops.
What's the matter?
Best regards,
Michael

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It seems to me the you have either a clutch problem or a spur gear problem.if it is the clutch the clutch drum will be blue.witch means you need to replace the clutch and drum.if it is a spur gear problem you need a new spur gear.to check it out,take the chain and bar off the saw.now look at where the chain rides in the gear.there should be no markings on the gear.if the spur gear has any dents on the gear then the gear is bad.if you are getting denting on the surface then you are over tighting the chain.this causes the chain drivers to ware also.most likely this is your problem.hope this helps,let me know if you have any more questions............

Posted on Jun 01, 2009

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How to assemble the chain brake on a Husqvarna 137 chainsaw


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http://weborder.husqvarna.com/order_static/doc/usa/2006/I06000/I0601906.pdf
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HusqvarnaUSA.com (if the above is not your saw, IPL displays parts)
http://www.husqvarna.com/us/homeowner/support/download-manuals/
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If you have more questions or need additional help please reply below and I will get back to you. HTH & Good Luck.
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Thank You for using FixYa.

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2 Answers

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You understand there is a fast idle start position? If your saw is new it is triggered when the choke is pulled and remians in this position (even when choke pushed in) until the throttle is advanced once. Read your warm start instructions, it says pull clutch, push clutch, start. This is why we should buy saws from a chainsaw seller/mechanic NOT Home Depot!!!
I made the mistake ONCE of attempting to start mine without the fast idle engaged... my shoulder aches just thinking about it. GL
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