Zenoah GZ400 manual Periodical Service Points

F10-5

F10-6

F10-7

English

10. Maintenance

4. Others

Check for fuel leakage and loose fastenings and damage to major parts, especially handle joints and guide bar mounting and muffler. If any defects are found, make sure to have them repaired before operating again.

■PERIODICAL SERVICE POINTS

1. Air cooling system

Dust clogging around the cooling system and the cylinder fins will cause overheating of the engine. Periodically check and clean the cooling system and the cylinder fins with a brush after removing the cylinder cover, the air cleaner and the recoil case. When installing the cylinder cover and the cooling system, make sure that switch wires and grommets are positioned correctly in place. (F10-5)

(1)Recoil case

(2)Fan cover

(3)Fan

(4)Cylinder fins

(5)Cylinder cover

NOTE

Be sure to block the air intake hole.

2. Spark arrester

The muffler is equipped with a spark arrester to prevent red hot carbon from flying out of the exhaust outlet. Periodically check and clean as necessary with a wire brush after removing two muffler cover nuts and one screw. (F10-6)

(1) Spark arrester

NOTE

Never use a muffler if the spark arrester is missing or defective.

3. Exhaust port

Remove the muffler, insert a screwdriver into the vent, and wipe away any carbon buildup after every 100 hours of use. Wipe away any carbon buildup on the muffler exhaust vent and the cylinder exhaust port at the same time. (F10-7)

(1)Muffler exhaust vent

(2)Cylinder exhaust port

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