Tools to Service Stihl Trimmers

Written by eric blankenburg
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Tools to Service Stihl Trimmers
Screwdrivers, wrenches and pliers are essential tools to service your Stihl trimmer. (Jupiterimages/ Images)

To keep your Stihl trimmer running at its highest level requires a good amount of servicing, maintenance and cleaning. While the amount needed varies throughout the season, using the right tools is essential to properly servicing your trimmer. Keeping these tools on hand will allow you to save time and money on costly repairs that can be performed by almost anyone.


Most trimmers use either a Phillips head or flathead screwdriver. These should be long enough to reach into tight corners, and the heads should be large enough to properly fit onto the screws without stripping them. Smaller head screwdrivers will also be needed to adjust the carburettors.


Another essential tool is wrenches. Most trimmers use 1/2- to 1/8-inch bolts on most of the parts. Everything from the clutch to the muffler to the moving head are all attached to the trimmer using bolts. Depending on how deep your spark plug is set into the engine, you may also need a socket wrench to remove it.

Needle-nose Pliers

These pliers work well for reaching and grabbing those small parts. They are also essential in removing and replacing the gas line and prefilter on the end of the gas line.

Cleaning Materials

Keeping areas free of foreign material will help your trimmer last for years. Essential cleaning materials are a little clean, unmixed gasoline, rags and brushes with old toothbrushes working well to reach those tight corners.

Speciality Tools

Some speciality tools are required if you plan to service areas like the clutch or carburettor by yourself. Stihl offers a tool that helps free the clutch's bolt while holding the clutch steady. You can also use a specially made rubber piston stop tool, which actually prevents the piston from spinning the clutch. A compression gauge will allow you to pressure test the carburettor for any gas leaks.

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