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4-5-11
Important steps in assembling Engine
1
Assemble by reversing the disassembly procedure.
Fig. 99
2
With 1R310 or the like, push in the following Check
valves [1] until they stop:
One Check valve [1] on the rocker chamber
Two Check valves [1] on the mating surface of
Cylinder and Crankcase
Fig. 100
3
Apply a little amount of 4-stroke engine oil to the tips
of Intake valve and Exhaust valve [1] and then insert
them into Cylinder block [2].
Fig. 101
4
Prevent Intake valve and Exhaust valve from dropping
by following the procedure as follows:
1
Clamp a plastic hammer securely in a vise.
2
Wrap a rag around the handle of the hammer.
3
Put Cylinder block [1] over the handle of the
hammer.
5
Install Retainer (2 pcs) [2] and Compression spring 12
(2 pcs) [3] on Cylinder block [1].
[2]
[3]
[1]
[1]
[2]
1R310
[1]
