Balancer; Automatic Decompression Device (Manual Starter Model) - SELVA MARINE Kingfish 25 Service Manual

TECH
FEA
Technical features and description

Balancer

The balancer 1, which is installed in the opposite direction of the pistons, decreases the engine
vibration by canceling out the primary vibrations produced by the reciprocating motion of the pis-
tons.
1

Automatic decompression device (manual starter model)

When the starter rope is pulled, the decompression actuator 1 for each exhaust valve retards the
closing timing of the valve to reduce the pressure in the cylinder and decrease the force that is nec-
essary to pull the rope.
When the engine starts, the decompression actuator 1 moves in the direction of the arrow due to
centrifugal force and the closing timing for the exhaust valve returns to the standard timing.
1
È
È Compression pressure
2-9