16
Fuel filter
Replace every 12 months.
(a) Using a wire hook, take out the filter from the fuel tank refilling inlet (Fig.10 No.12).
(b) Disassemble the filter and wash with gasoline, or replace with new one if needed.
NOTE
After removing the filter and when assembling the filter, take care not to allow filter fibres or dirt
inside the suction pipe.
Silencer
The silencer may become blocked by deposits over a period of time and must be removed to be
cleaned or replaced.
Chain oil tank
With a wire hook, take out the oil filter through the oil filler port (Fig.10 No.13) and clean in
gasoline. When putting the filter back into the tank, make sure that it is positioned in the front
right corner. Also clean out any dirt in the tank.
Spark plug
Check every 12 months or if starting problems are experienced. When the engine is cold,
remove the plug cap and unscrew the spark plug with a suitable spark plug socket. Clean the
electrodes with a wire brush and reset the gap to 0.65 mm when necessary (Fig.23). If the
electrodes are excessively soiled or worn then replace with an equivalent new spark plug (e.g.
BM6A). Excessive soiling may be due to a) too high ratio/poor quality 2-stroke oil or b) clogged
air filter.
Replace spark plug and screw in by hand to avoid stripping of thread, then tighten with socket.
Sprocket
(Fig. 5)
Check for cracks and for excessive wear interfering with the chain drive. If the wearing is
observed, replace. Never fit a new chain on a worn sprocket, or a worn chain on a new
sprocket.
Front and Rear dampers
Replace rubber dampers if they are cracked or appear peeled.
Figure 22
Figure 23
Figure 21
0.65 mm
