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How to Tune up a Sears 32CC Gas Line Trimmer
How to Tune up a Sears 32CC Gas Line Trimmer. A well-tuned engine will make using your Craftsman 32cc Gas Line trimmer much easier. A basic tuneup should be performed at least once per year and preferably at the beginning of the mowing season.
A well-tuned engine will make using your Craftsman 32cc Gas Line trimmer much easier. A basic tuneup should be performed at least once per year and preferably at the beginning of the mowing season.
Things You'll Need
Spark plug
Gasket kit
Carb and choke cleaner Compressed air source
Air filter
Assorted hand tools
Remove the spark plug wire from the spark plug. Drain any fuel remaining in the trimmer from previous usage. Old fuel stored in the trimmer through the winter months should be discarded completely. Gas will go old over time and may prevent the trimmer from running properly or even starting at all.
Check the fuel lines. There is a general life expectancy of around 2 years or seasons of use. After this point, the lines will begin to show general wear and tear and may even begin to fail if not replaced. Make sure they are not damaged and are attached properly.
Remove the carburetor and thoroughly clean it with carburetor. There are two basic types of cleaner available for this purpose. First is a complete soak cleaner which requires removing the entire assembly and placing in a "bath" of sorts. Then use compressed air to blow debris from the parts. The other choice is a can of cleaner which is used to spray the carburetor and all intricate parts. Either is an excellent choice, and both must be used with caution in a well-ventilated area away from open flame.
Reassemble the carburetor insuring all parts, both new and old, are securely tightened. You will need to adjust the fuel mixture using the fuel mix screw. As a starting point, begin with the screw at 1 1/2 turns from the fully flush position. This is a good starting point, however, there will need to be minute incremental adjustments once the engine is started in order to achieve a smoothly running engine.
Remove the spark plug and replace with a new recommended plug. Remember to gap the plug to ensure proper firing, and tighten snugly. Do not over-tighten the plug. There may be some tightening of the plug during normal usage, but over-tightening may make the removal process very difficult. Carefully reconnect the spark plug wire to the top of the plug.
Remove the air filter and replace it with a new recommended filter. Removing the filter cover may require a screwdriver. Care should be taken not to damage the cover or housing into which the filter sits.
Refill the tank with with fuel, and start. You can now adjust the the fuel mix screw to properly set the idle speed of the trimmer. Your tune up is complete.
Tips & Warnings
Use only recommended replacement parts for rebuilding the carburetor and replacing the spark plug and air filter. Consult your owners manual or local repair shop should you have any questions or concerns.
Care should be exercised when working on any type of engine. Be sure to disconnect the spark plug wire prior to beginning your work. Use caution when working with solvents and cleaners. Use in well-ventilated areas, and stay away from open flames. Use caution with hand tools.
