Homelite super 2 16

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  #1  
Old 10-11-01, 03:55 PM
tamtinyus
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Since I just fixed my Craftsman lawnmower by installing a new carburator with the help of this wonderful forum, my next project is to deal with my chain saw. It is around 7 years old. It had developed a problem. After cutting for a while, it dies or after it is stopped, it won't crank. Is it overheat? I have disassembled the whole thing and cleaned very thorough. Then it worked well for several times. Now the problem comes back. What are the common problem areas? Thanks in advance for your ideas.

If new parts are needed, where can I get it? I have checked Homelite's homepage but they don't sell parts directly to customers.

T.Y.
 
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  #2  
Old 10-12-01, 11:16 AM
Frosty
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Hi Again Tamtinyus,

It sounds like a fuel starvation problem. When you said you took everything apart did you take the carb apart as well? Two quick checks you can make are: 1) make sure your air filter screen is clean, and 2) and inspect your spark plug wire for cracking (cracks could be seperating the wire once it get heated up.)

I honestly believe it to be carb related though. Maybe clogged inlets, or even a bumped mixture screw. Also, as Tom will ask, is your gas cap venting properly?

Hope this helps.
 
  #3  
Old 10-12-01, 04:02 PM
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Hello Tamtinyus

Engine overheating could be a factor. Take a spark plug reading. The plug firing tip should not be white. Slightly black, brown and or tan in color is fine.

Also check the heat range of the plug. Often this does not change the internal operating temperature of an engine. But be sure the correct type and heat range plug is installed.

If the engine is running too lean on fuel, this will also cause excessive heat. A spark plug reading will indicate a lean fuel mixture.

You may need to richen up the fuel mixture some. Adjust the fuel mixture screw, on the carb body, a little by turning it outwards. {counterclock wise} The engine should puff out a tiny bit of black smoke. When a slight bit of black smoke puffs out of the muffer, turn the screw inwards slightly. {Clockwise}

Ideal fuel mixture is a mid point between too much fuel {Black Exhaust Smoke} and too little. Too little is when the engine just starts to die. The mid point between the two is ideal. Just slightly rich {1/8 turn out} is okay too.

For carbs with two adjustment screws, the screw marked "L" is the low speed fuel mixture screw. The screw marked "H" is the high speed fuel mixture screw. Both adjustment settings must be correctly set to avoid hot or lean running problems.

Incorrectly set low speed fuel adjustments {lean} will cause rough idling, stalling and acceleration problems. Incorrectly set high speed adjustments {lean} will cause excessive engine heat, poor performance and a lack of power, etc.

A slightly enrichened high speed {"H"} fuel mixture is desired. The fuel mixture aids in cooling the engine and governs the top end speed.

Running the engine too lean will allow the engine to overspeed {In mechanics terms - Engine Scream} on the high speed. This is NOT a desired condition. Running a two stroke engine in this manner will distroy the engine!

Potential parts sources:

BILLIOU'S 1-209-784-4102

L.S.THORPE CO. INC. 1-617-776-2445

Disclaimer:
I do not have any affiliations nor vested interests in either of these retail parts suppliers. Provided solely to assist with locating parts.

Small engine parts can also be found at your local small engine repair shops and lawn mower repair shops listed in the phone book.

Regards and Good Luck,
Tom_Bart.....
The Forum Moderator
Accurate Power Equipment Company
Small Engine Service and Repair Technician.
Bare in mind my company no longer services nor repairs lawn and garden powered equipment. The information provided is accurate to the best of my knowledge.

PS
Frosty is correct:
Check the vent hole in the fuel cap....
 
  #4  
Old 10-13-01, 04:46 PM
Fisher
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I believe this saw has a "duckbill" valve at the
top of the tank for a vent, and can become stuck
together.
Fish
 
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