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

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Husqvarna 350 cannot get to run will run 1 second

I replaced the rubber boot from carburetor to cylinder head now i cannot seem to get fuel thru carburetor took off cover from fuel intake bellows and there is fuel at this point after several pulls and choking i can get to run less than one second seems like fuel wont continue to feed engine

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  • qualitybag1 Jan 20, 2009

    my chainsaw would run very well, except it wouldnt idle slow enough to stop the chain. i mentioned to a husqvarna dealer the problem and he told me that it sounded like the boot must have a defect. I took it to another dealer and told him the problem he said that he could fix the problem but the cost would be $180.00 i felt that this was more than i wanted to pay, so i ordered a new boot and gasket for between head and block, i replaced both parts and now when i try to start it takes lots of pulls before it fires up for just less than a second, i am not sure what you mean by thru intake gasket, if you mean the one between head and block i replaced same as old one, i am going to put drops of gas in carb and try that, when i removed the boot i didnt find any defect but because i had purchased a new one, i did replace with the new. when i remove cover on carb, there is gas supply the when i raise the little valve the gas disappears into the carb, my feeling there may be something blocking the passage to the engine

  • bczerkie May 11, 2010

    Just a little info that may help if you don'y already know it.

    Impulse for the pump works off of vacuum created in the crankcase with each revolution. It moves the pump in the carb to pump gas thru the check valves. the impulse most of the time is routed thru the intake manifold if it is solid into a very small hole in the carb face. So the gasket before and after the intake must be installed correct and All 4 Must have the matching holes. The other way it can work is if it runs a small hose to the carb to transfer this pulse.

    I think your saw has a primer on it, so It may have 3 hoses on the carb if it uses this set-up. check to make sure when you pump the primer the extra gas returns to the tank and not to the crankcase.

    since it has the hose you replaced on it I think it will be the last description.

    Before you changed this hose out did you try adjusting idle down and High and low settings? Which is not really for the beginner as it takes a trained ear.

    Maybe this will help. Bill

    Post a picture of the carb area showing hoses and Intake.

    And In your description you stated head and block, You did mean head and intake correct?

  • bczerkie May 11, 2010

    Did it run prior to replacing boot? Did boot just look bad or was it torn and this is why it had to be replaced? Does the carb get impulse for pump thru intake or a hose on your saw? if thru intake was gasket installed correctly or upside down? Is it the same gasket or new Identical? Is new intake Identical? Were either of the little check valve (flaps) stuck. Will it run longer if you put 8 drops of gas in carb?

    This may Help diagnose. Thanks Bill



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After changing the carb boot. The most common problem is while the saw is being put back together, The fuel lines get pinched between the Case. Hope this Helps.

Posted on Feb 16, 2009


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