Question about Homelite Consumer Products Backpack Blower/Vac, Carb

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STIHL SH86C leaf blower will idle but not rev - Not a fuel issue

Took carb appart and no issue with this or fuel system. Idle is ok. Will not rev. Adjustment to high speed jet no change. Spark appears good and plug is good.

Posted by Anonymous on

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Posted on Jan 02, 2017

  • 246 Answers

SOURCE: homelite ut o8107 blower 25cc will only idle


Have you Removed the Muffler and Checked the Exhaust Port and Muffler for Carbin Restriction?
Remove the Muffler and Start the Unit. If the Operates Correctly, then the Spark Arrestor Screen is Clogged and the Muffler/Screen Requires Replacing.
Make Sure the Exhaust Port is Not Restricted Also.
Hope this Helps.

Good Luck



Posted on May 10, 2009

  • 437 Answers

SOURCE: BX 90 homelite leaf blower two idle screws

The initial setting is 1 1/2 turns out. Screw them all the way in and them turn them 1 1/2 turns out. This is the starting position and should start, it may need some final adjustments to run like you need it to run.
Remember more the screw is out the more fuel it will get.
Good Day.

Posted on Oct 14, 2009

  • 110 Answers

SOURCE: my leaf blower only runs on idle only when choke

I have found that most of the homelite hand blowers have a tendancy to loosten the cylinder bolts, that causes a low vaccuum situation thru the carb and needing more fuel to run. I would recommend you completely dissassemble the engine and replace the cylinder gasket, Use the blue loc tight on all the bolts. Any of these engines that dont have a thru crankshaft to dispurse the vibration, tend to vibrate all the bolts loose.

Posted on Nov 01, 2009

SOURCE: My 2 stroke leaf blower will not start new spark

is it new gas? is it getting gas?

Posted on Jun 28, 2010

  • 10319 Answers

SOURCE: I have a Homelite Backpack

It's probably the coil or the fuel supply. You might try running it with the gas cap loose for a bit and see if that relieves the problem.

When the engine dies, you have to check the spark and the fuel supply. Have an ignition tester handy and check the spark as soon as it dies. If it will keep firing, then pull the fuel line from the carburetor and see if fuel is flowing. Let me know what you find.

Posted on Apr 24, 2011

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1 Answer

Won't rev up

Check the Spark Arrester on the muffler. Usually an allen key to take off a section of muffler to get to it. It's a small Screen. They clog with soot and the engine cannot breath.

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My new homelight leaf blower either revs too much or stops it wont idle it is the cheap model and I cant see any screws for adjustment.

idle should be adjustable , but if it was purchased in the u s of a since 2012 then sorry it's got a C.A.R.B. type carb on it ( google that acronym) and sorry fuel mixtures are not adjustable anymore the clean air folks took care of that for us! I thank them everyday for looking out for us all .

look on top of carb right next to cam that moves when you press throttle down , there you'll see a very small screw that's your idle adjustment

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the fuel filter is blocked up check inside the feed tank for a few leafs floating about and blockages
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Wont run idles rough new plug new air filter new fuel mix

new fuel filter?????
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or the tank will vacume restricting the fuel
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most stihl blowers have 1 or 2 screws near the carb to adjust the idle, try turning a quarter turn while running. not familiar with this particular model. if a rough idle is your only issue with a $2.50 blower, just consider yourself lucky. carb could be gunked up as well. may want to take it apart and have a look, and take the filter out of the exhaust chamber and burn off carbon deposits... not really sure what your question is here

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The Stihl 46C will not accelerate and cable and gas is good. Help

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Only runs on choke, will not rev-up. took exaust off did not change, fuel is filter clean, plug has been cleaned, new fuel and let idle till it got hot, still will not rev-up

Your description sounds like fuel restriction in the main circuit. Sometimes you need to soak the carb in carb cleaner and then blow out passageways with compressed air.

There is one "cheat" but it involves some higher throttle, and that is you remove the air filter, rev up the unit and briefly place palm over the intake. Sometimes this is enough to pull the obstruction free.

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I have a Echo PB-260L Blower. It starts fine then gradually loses power sometimes completely shutting off. I have replaced the fuel filter spark plug air filter and have cleaned the screen.

Check the exhaust port upstream from the muffler and make sure it is not restricted with carbon. Mine was less than half way covered over with carbon. Scraped out carbon, checked muffler and screen(ok), back-blow the fuel line harness including the fuel filter and fuel tank vent and took carb apart and blew out all passages, not replacing anything and now runs fine. Would not rev past high idle before. Be sure gas is FRESH and mixed at 40-50 to 1. Hope this helps.

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1 Answer

Will not rev..

if it will not rev up it could be the fuel mixtures on carb. the settings on the carb should be ( left screw should be 1 turn out from being turned all the way in & the right should be 3/4 try that & see what happens let me know thanks,wade

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2 Answers

Stihl blower - full throttle it stalls out. low speed ok. have replaced fuel line, spark plug.

Your carburetor needs cleaned or you need a carb. kit depending on how old the carb. parts are. If you need tips on carb. cleaning, feel free to ask.


May 30, 2009 | Echo Garden

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