Question about Husqvarna "Chain Saw - 16" Bar, 3 Hp

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I just purchased a used 51. it looks almost new. thought i got a good deal until i used it for about 10 minutes. it started to run sluggish as if i was running out of gas and than it stalled. i tried to restarted it immediatedly and it would not start up. i set it down and went to get my other husky saw. after i was done cutting for the day i tried to start the 51 again. it started right up. so i proceeded to cut some wood and try it out again. after about 10 minutes it did the same thing. seems to run fine until it warms up. then it gets sluggish and quits on me. i have been using husky saws for almost 20 years and i never had problems with them. i would like and try to fix it myself. can u help me/

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With small 2 stroke engines, it's either a spark problem or it's a fuel problem. In your case, it's definitely a fuel problem.

It could be you have a drop or two of water in your fuel or in the carburetor. Put a bit of HEET (methanol) in your premix, it'll take a while to dry it out if this is it.

Check the air cleaner element. If it's dirty, clean it with carb cleaner or gasoline or similar. If it's missing entirely, this is likely the problem, it won't run properly without a filter element, as it requires a slight drop in pressure to create a vacuum to **** fuel out of the carburetor.

Also check the fuel line for a gap or crack. Either will cause it to do what you're describing.

If you still didn't get a hit, take the carburetor off and carefully clean it. It doesn't take much of anything foreign to make it wig out.

Hope this helps.

Posted on Oct 02, 2010


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