Specifications
P25 Series of Engines
28
Fuel filer
A dirty fuel filter can result in a lean run condition. The fuel filter should be inspected every 25 hours of use.
NOTE: The weighted fuel filter (clunk) keeps the filter submerged in the fuel at any angle of operation. The fil-
ter removes dirt and air bubbles from the fuel. Running the trimmer without the filter may allow air into
the fuel line creating a lean run condition at higher RPMs. This will cause a catastrophic failure of the
engine.
NOTE: Starting in 2012, EPA guidelines will mandate that all handheld enginesproduced have low permeation
fuel lines. These fuel lines do not stand up to the removal/installation methods used in the field.
Because of this, the fuel filter and fuel lines are serviced with the fuel tank.
To inspect the fuel filter:
1. Bend a piece of wire to make a hook.
See Figure 5.6.
2. Remove the gas cap.
3. Stick the hook end of the wire into the fuel tank and
fish out the fuel filter. See Figure 5.7.
4. Inspect the filter for signs of dirt or damage.
NOTE: If the filter is dirty or damaged, the whole
fuel tank assembly must be replaced.
NOTE: Pay close attention to the fuel line. If they
are discolored or brittle, replace the fuel tank
assembly.
5. Place the filter back inside the fuel tank.
6. Test run the engine before returning it to service.
Figure 5.6
Figure 5.7
Fuel filter
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