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21
CSG-670 TYPE1-E
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CHECK PERIODICALLY)
1. Do not allow dust to enter fuel tank.
2. Clogged filter will cause difficulty in starting
engine or abnormalities in engine performance.
3. Pull the fuel filter out through fuel inlet port with a
piece of steel wire or the like.
4. When the filter is dirty, replace it.
5. When the inside of the fuel tank is dirty, rinsing
the tank out with gasoline can clean it.
Fuel Filter
Fuel Cap
REPLACE FUEL FILTER
WARNING
Check condition of fuel cap and gasket. Be
sure the cap fits tightly and there is no fuel
leak.
WHEEL SHIELD TIGHTNESS
The wheel shield mount includes a metal spacer. The metal spacer should
be removed, when tightening of the wheel shield locking knob no longer
locks the guard in position.
1. Remove abrasive wheel and both flanges.
2. Remove the circular metal plate and the wheel shield, held by three small
screws.
3. Remove the metal spacer, and reinstall the metal plate and shield.
4. Reinstall wheel between inner and outer flanges.
NOTE: Hub of outer flange fits inside larger hub of inner flange. Do not
reverse flange position or the wheel will be locked.
SPARK PLUG
NGK BPM6Y
Spark Plug
1. Clean the outside of the saw. Then follow
instructions to disassemble the air cleaner.
2. Remove five screws and lift off the air cleaner
base plate to expose the spark plug. Pull off the
cap and remove the plug.
3. The proper spark plug for this engine is NGK
BPM6Y. The firing gap between the electrodes
should be adjusted to 0.6 mm - 0.7 mm (0.24 in.
- 0.28 in.) before use.
4. Install the spark plug. Proper tightness with a
cold engine is 15 to 17 N•m (130 to 145 in. lbs.).
5. Many failed plugs can be restored by filing or
scraping the electrodes down to bare metal,
cleaning all deposits off the porcelain insulation
around the center electrode, then re-gapping.
0.6 mm to 0.7 mm
(0.24 in. to 0.28 in.)
WARNING
Fuel vapors are extremely flammable and
may cause fire and/or explosion. Never test
for ignition spark by grounding spark plug
near cylinder plug hole, otherwise serious
personal injury may result.