Chapter 3 Engine Section 2 Engine Disassemble and Re-assemble
3—8
Install the chain.
Note：
The chain buckle should be assembled with the
open end in the opposite direction to the running.
As in Fig.3.2.27
Tighten the engine sprocket nut to the specified torque.①
As in Fig.3.2.28
Engine sprocket nut：90N.m（9.0kg.m）
Note:
Press back brake pedal while tightening engine
sprocket nut.
Place the gasket firmly.
Tighten the exhaust pipe bolt and the ② Muffler mounting
bolt and to the specified torque. As in Fig. 3.2.2③ ④ 9.
Exhaust pipe bolt：11N.m（1.1kg.m）
Muffler mounting bolt：11N.m（1.1kg.m）
Note：
Check the wires, cables and hose routes.
After reassembling the engine, the following items need to
be adjusted:
Unloaded engine stable speed (idling speed)
Throttle valve cable clearance
Enriched plunger cable clearance
Clutch lever clearance
Drive chain
Rear brake pedal height and free travel
After heavy maintenance, 1300 ml of SAE10/40 oil, SF or
SG grade, needs to be injected into the engine. Start the
engine and let it run at a steady speed without load for a
few minutes. Then stop the engine, wait about 1 minute,
and check the oil level. If the oil level is below the "F" line,
add oil until it reaches the "F" line.
Fig.3.2.27
Fig.3.2.28
Fig.3.2.29
Fig.3.2.30
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