Air Cleaner; Decompression System - Robin EH09D Service Manual

4-14 AIR CLEANER

The air-cleaner is a heavy-duty type with a dual
element system ; the primary one is an urethane
foam (semi-wet) and secondary one is a semi wet
type element.

4-15 DECOMPRESSION SYSTEM

An automatic decompression mechanism which
opens the exhaust valve before the piston reaches
maximum compression is assembled on the cam-
shaft for easy starting.
During engine operation the decompression sys-
tem is overpowered by centrifugal force and com-
pression is fully utilized to produce power.
CLEANER BASE
PLATE,
AIR CLEANER
ELEMENT SET
AUTOMATIC DECOMPRESSION SYSTEM
RETURN SPRING
- 11 -
URETHANE FOAM
CLEANER
COVER
ELEMENT
Model: EH09D
Fig. 4-13a
CLEANER BASE
ELEMENT
CLEANER
COVER
Model: EH12-2D
Fig. 4-13b
Fig. 4-14