Exhaust Muffler; Driveshaft - Maruyama B23C Manuel Du Propriétaire

Maintenance Interval
• The spark arrester should be inspected and
cleaned after every 25 hours of use.
• Replace the screen if it cannot be thoroughly
cleaned, or if it is damaged.
Spark Arrester Maintenance
1. With the engine at ambient (room) temperature,
loosen the knob and remove the air filter cover.
2. Twist the high tension lead boot on the spark plug
back and forth a couple of times to loosen the boot,
then pull the boot off of the spark plug.
3. Loosen the knob and lift off the cylinder cover.
4. Remove and clean the tail, gasket and spark arrester
with a safety solvent and a stiff brush. If any part
cannot be thoroughly cleaned, it must be replaced.
5. Reinstall the spark arrester and tail onto the muffler,
then reinstall and tighten the two socket headscrews.
6. Reinstall the cylinder cover and the air filter cover.

Exhaust Muffler

Maintenance Interval
The muffler should be inspected and cleaned after each
100 hours of use.
Muffler Maintenanc
1. With the engine at ambient (room) temperature,
loosen the knob and remove the air cleaner cover.
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2. Twist the high tension lead boot on the spark plug
back and forth a couple of times to loosen the boot,
then pull the boot off of the spark plug.
3. Loosen the knob and lift off the cylinder cover.
4. Remove the spark arrester (see spark arrester
maintenance), Clean the muffler with a stiff brush.
IMPORTANT: Don't use solvent for cleaning
inside of muffler, because of the catalytic converter
in muffler.
Be careful not to allow any dirt or debris to fall
into the exhaust port, as this can cause engine
damage.
5. Reinstall the spark arrester and tail onto muffler,
then reinstall and tighten the two socket head
screws.
6. Reinstall the cylinder cover and the air filter cover.

Driveshaft

Maintenance Interval
The flexible driveshaft should be lubricated aftereach
30 hours of use.
Driveshaft Lubrication
Loosen the two screws on the bearing case and remove the
bearing case. The inner flexible driveshaft is easily removed
by gripping the end securely and pulling it from the drive-
shaft tube. Lubricate the entire length the flexible driveshaft
and insert it into the driveshaft tube. Twist the flexible shaft
while pushing to insure that it seats correctly into the drive-
shaft coupler. Re-install the bearing case onto the driveshaft
tube and tighten the two screws.
― US - 19 ―