Zenoah HTZ7510, CHTZ6010 owner manual F15 F16 F17 F18, Maintenance, English

F15

F16

F17

F18

English

6. MAINTENANCE

■FUEL FILTER (F15)

When the engine runs short of fuel supply, check the fuel strainer for blockage.

■WAY OF THE COOLING AIR (F16) This engine is air-cooled. Dust clogging between the inlet port of the cooling air and cylinder fins will cause overheating of the engine. Periodically check and clean the cylinder fins after removing the air cleaner and the cylinder cover.

■SPARK PLUG (F17)

Starting failure and mis-firing are often caused by a fouled spark plug. Periodically clean the spark plug, and replace with a new one as required.

IMPORTANT

When dismounting the plug cap, be careful not to take off the seal from the plug cap. Operating the engine without seal may cause overheating of the engine.

IMPORTANT

When setting up the spark plug, screw it by your fingers at first, then tighten by using special plug wrench. Over tightening will damage the cylinder and piston.

Tightening Torque:

15.3 ~ 22.4 N.m (150 ~ 220kgf-cm)

Type of Plug	Spark Gap
NGK CMR7H
or	0.6 ~ 0.7 mm
CHAMPION RZ7C

■GEARCASE (F18)

Supply multi-purpose grease at every 25 hours of use.

1.Use a grease pump.

2.Feed grease until it comes out of the base of blades.(F18-a)

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