Small Engines (Lawn Mowers, etc.): Homelite Leaf Blower, carburetor body, backpack leaf blower

Question
I have a Homelite backpack Leaf blower BP30185 UT08036R.  I am desperately trying to find how to adjust the carburetor. The previous owner had adjusted the carburetor and I need to get it back to a starting point/baseline. It will run with the choke on and sometimes off but does not run well. Once warmed up it will run for a minute then stalls out(like it ran out of fuel) and dies. There are two knobs side by side on the carburetor and the plastic has been broken off can/do these need to be replaced? I also need to know what the mix ratio is for the oil/gas. If there are any other areas to look at and go over please point me in the right direction.  Any help would be greatly appreciated. Thanks, Sean

Answer
Hello Sean:

First, Remove the Muffler and Inspect the Exhaust Port for Carbon Blocking the Exhaust Port. Check the Muffler and Spark Arrestor Screen (in the muffler) for Blockage Also. ****All the Carburetor Adjustments are the Same for Lawn Mower and Trimmers. There are Several Location for the Air Mixture Screws. The Idle Air Mixture Screws are Usually Located at the Top of the Carburetor Bowl and the Top of the Carburetor Body. If the Main Air and Idle Air Mixture Screws are Side by Side on the Side of the Carburetor, then the Idle Air is the Farthest from the Engine. The Main Jet Air Mixture Screw is Located in the Bottom of the Carburetor Bowl or Beside the Idle Air Screw on the Side of the Carburetor Body. Some of the Older Model Carburetors have the Main Jet Mixture Screw Straight in from the Top of the Carburetor Body (this is Rare anymore). If you have Cleaned the Carburetor (Disassembled and Soaked Overnight in Carburetor Cleaner (I Use Gunk). Then Blow Out the Passages with Compressed Air and Install a New Kit if Required. Now Setting the Air Mixture Screws:  ****Turn the Idle Air and ****Main Air Mixture Screws In Until SNUG **Do Not Jam** Then Reverse Both Screws 1 1/2 Turns. Holding the Throttle Full Open, Start the Engine. Turn the Main Air Mixture Screw Clockwise Until Proper Revs are Obtained. Occasionally you May have to Turn this Counter Clockwise to Achieve the Proper Revs. Now Allow the Engine to Idle. Set the Engine Idle Screw (Not Idle Air) so the Engine will Stay Running if Required. Now Set the Idle Air Mixture Screw so there is No Hesitation when Throttling from Idle to Full Throttle. Reset the Engine Idle if Required.**** All two stroke engine will use a 50 to 1 ratio using today's two stroke oils.  I once used an old chainsaw probably from the 1960s, that had a sticker on it that said to use a 25 to 1 fuel/oil ratio, but that would have been using two stroke oils of the time period the chainsaw was manufactured.  In that chainsaw I used 50 to 1 ratio with no problems.  Today's two stroke oils compared to yesteryears are more efficient at lubricating.  It is like comparing today's synthetic motor oil to motor oils of decades ago.  All the equipment I use in landscaping, anything from a weed eater, leaf blower, chainsaw, hedge trimmer, use 50 to 1 ratio, and I use all types of makes and models, Stihl, Homelite, Husqvarna, Shindaiwa, and Echo, Sears.  I mix up a 5 liter fuel can and use it in all of the equipment for my customers and for my landscaping. You can View a Breakdown of this Equipment at this Site Addy; http://www.homelite.com/ and Select Parts/Service at left, then Select Go to Homelite Parts Store. If you Hit a Snag or this Does Not Correct the Problem,  I am Here if You Require More Assistance. Hope this Helps. Let me Know What Happens, Please. Thanks.

Good Luck

Respectfully

John

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Respectfully

John