Echo Power Blend CSG-680 Operator's Manual - page 20
20
CSG-680
(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 petrol can clean it.
WARNING
Check condition of fuel cap and gasket. Be
sure the cap fits tightly and there is no fuel
leak.
Fuel Filter
Fuel Tank Cap
Replace Fuel Filter
Spark Plug
NGK BPMR7A
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
BPMR7A. The firing gap between the electrodes
should be adjusted to 0.6 mm - 0.7 mm before
use.
4. Install the spark plug. Proper tightness with a
cold engine is 15 to 17 N•m (150 to 170 kgf•cm).
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.
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.
0.6 mm - 0.7 mm