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DISASSEMBLY, REASSEMBLY, INSPECTION, AND MAINTENANCE 3-57
Balancer
Engine vibration is generated primarily by the inertia that is created
through the reciprocal movement mass such as the piston, piston pin,
piston ring, and the small end of the connecting rod.
On the FE400, 350, 290, and 250, a reciprocal movement balancer
system in which balance weight is linked to the crankshaft has been
adopted. This is the most effective method for canceling the inertia that
is generated by the reciprocal movement mass, thus reducing vibration.
A: Crankshaft
B: Link Rod
C: Spacer
D: Crankcase
E: Balance Weight
F: O-ring
G: Balancer Guide
H: Nut
The FE170 can be provided with a uniaxial rotation balancer as a
factory option.
A: Crankshaft
B: Balancer Drive Gear
C: Balancer Shaft
D: Balancer Gear