Refer to “balancer shaft disassembly and assembly” .
Balancer shaft
Inspect the balancer shaft for wear or damage. Replace the balancer shaft if there is anything unusual.
Damper
Inspect the dampers for wear and damage, replace them if any defects are found.

Balancer shaft disassembly and assembly
Balancer shaft journal bearing removal and
installationFront brake master cylinder assembly removal and installation
Removal
Drain brake fluid. Refer to “brake fluid replacement” .
Disconnect the front brake light switch coupler (1).
Place a rag underneath the brake hose union bolt (2)
on the master cylinder to catch any spilt brake fluid.
Remove the brake hose union bolt (2).
...
Engine bottom side assembly
Assemble the engine bottom side in the reverse order of
disassembly. Pay attention to the following points:
Note
apply engine oil to each running and sliding
part before reassembling.
Breather oil return plate
When installing the breather oil return plate (1), apply
thread loc ...
Iap sensor removal and installation
Removal
Lift and support the fuel tank. Refer to “fuel tank
removal and installation” in section 1g (page 1g-
9).
Disconnect the coupler (1) and vacuum hose (2).
Remove the iap sensor (3) from the air cleaner box.
Installation
Install the iap sensor in the reverse ord ...