Cotech HY3315A1, Owner'S Manual

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9.4 Adjusting the carburettor
The carburettor has been factory adjusted for optimum power.
9.5 Spark plug
Type of spark plug : TORCH L8RTC, Champion CJ7Y, NGK BPMR7A
Recommended spark plug gap:
0.635 mm. Se fig. 25.
Tightening moment: 12 – 15 Nm.
9.6 Sharpening the trimmer line cutter
(on the trimmer guard)
1. Remove the cutter (E) from the trimmer guard (F). See
fig.26.
2. Hold the cutter in a vice, sharpen the blade with a flat
file, sharpening in one direction only and making sure to
maintain the original grinding angle.
10. Storage
1. Clean the exterior of the grass trimmer, guard, trimmer head, spindle, the external parts of
the engine, etc.
2. Transfer any fuel remaining in the fuel tank to a petrol can.
3. Start the engine when the fuel tank has been emptied.
4. Allow the engine to idle until it cuts out, to empty the carburettor of fuel.
5. Allow the engine to cool for 5 minutes.
6. Use a spark plug socket to remove the spark plug.
7. Pour one teaspoon of pure 2-stroke oil into the cylinder via the spark plug hole, pull the
starter handle slowly a few times to distribute the oil evenly over the inside of the engine,
replace the spark plug.
8. Store the grass trimmer in a dry and well ventilated place.
10.1 Using the trimmer after it has been stored
1. Use a spark plug socket to remove the spark plug.
2. Pull the starter handle quickly and smoothly a few times to get the surplus oil out of the
cylinder.
3. Clean the spark plug electrodes or replace the spark plug with one having the correct plug
gap.
4. Tighten the spark plug using a spark plug socket.
5. Fill the fuel tank.
6. Follow the instructions in section 6.1 “Starting the engine from cold”
0,635 mm
Fig. 25
.
Fig. 26
.