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My homelite 3316c chainsaw it seems the idle is off when i start it it runs full throtle

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I would think that either throttle is hung open where the choke mechanism didn't release it or the throttle butterfly is missing.

Posted on Nov 15, 2014

  • Eugene Rounds Nov 15, 2014

    or unless it a will run at full throttle but you go idle it just dies then you have carburetor problems and adjusting the idle speed screw may not be of any help.



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Posted on Jan 02, 2017

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SOURCE: chainsaw dies out when gas is pressed to full throtle

Carb needs teardown and cleaning. May be a stuck float or clogged jet.
Spraycleaner just wont cut it.

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Posted on Apr 05, 2010

  • 2 Answers

SOURCE: chainsaw carburetion

Had a similar sounding problem with my stihl MS 250. After two years of heavy and frequent use (with minimal maintenance) it ran perfectly but after three years of little use with no maintenance it began to die if the revs were allowed to drop, ie it wouldn't idle. I hadn't been draining the tank when not in use so assumed a carb gunk problem. Can also be caused by an oily mix or old fuel.

Today I removed the old fuel and fuel filter and sprayed the tank and up the fuel line with carb cleaner. Then I removed the spark plug and filled the chamber with carb cleaner (use a straw to direct), I removed the air filter and sprayed carb cleaner in here too. I gently pulled the starter cord a few times to spread the carb cleaner. I left it for 1/2 hour while I had lunch.

I then rinsed out the fuel tank with fresh fuel, renewed the air filter, spark plug, fuel filter and fuel. I checked the H and L screws were in the right place (they were), before pulling on the starter a few times to prime / flood the chamber. I then removed the spark plug for 5 mins and had a cup of tea while the flooded chamber resolved / evaporated, then fired her up. It worked well all afternoon.

No need for any tricky or delicate stuff if you give this a go first is my advice. Cost only of spark plug, air and fuel filters, fresh 2" mix and a can of carb cleaner. Took less than an hour excluding interruptions. Saved a potentially expensive trip to the shop where I'd have been billed for these parts as a routine matter.

Posted on Jan 02, 2009

  • 2 Answers

SOURCE: homelite runs wide open all the time

intake boot under carb is probably bad, mine did the same thing and this was the problem. about a 6 or 7 dollar fix

Posted on Apr 11, 2009

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SOURCE: homelite xl chainsaw revved up & quit and won't start now

I suspect you have a fuel delivery problem or a dirty carburetor. As a chain saw runs out of fuel they often revv slightly (running lean). HTH

Posted on Oct 07, 2009

  • 152 Answers

SOURCE: Not running at full throttle

close to the carb you will find two tiny screws. They are labeled H and L. L sets the idle speed. H sets the max RPM. Hold the throttle wide open and turn the H screw. When you find the very top end, back it down some or it will be running too lean. That would make it run hot, and provides less lubrication. Could result in engine failure if you run it too lean.

Posted on Dec 23, 2009

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