Repair the valve seat with the valve seat cutters [A].
Special Tools - Valve Seat Cutter Holder Bar [B]: 57001 -1128
Valve Seat Cutter Holder, 4.5 [C]: 57001 -1330

[For Exhaust Valve Seat]
Valve Seat Cutter, 45° -
27.5:
57001-1114
Valve Seat Cutter, 32° -
28:
57001-1119
Valve Seat Cutter, 60° -
25:
57001-1328
[For Intake Valve Seat]
Valve Seat Cutter, 45° -
32:
57001-1115
Valve Seat Cutter, 32° -
33:
57001-1199
Valve Seat Cutter, 60° -
33:
57001-1334
If the manufacturer’s instructions are not available, use the following procedure.
Valve Seat Inspection
Seat Cutter Operation CareOil Level Inspection
Check that the engine oil level is between the upper [A]
and lower [B] levels in the gauge.
NOTE
Situate the motorcycle so that it is perpendicular to the
ground.
If the motorcycle has just been used, wait several minutes
for all the oil to drain down.
If the oil has just been changed, ...
DFI Servicing Precautions
There are a number of important precautions that should
be followed servicing the DFI system.
This DFI system is designed to be used with a 12 V sealed
battery as its power source. Do not use any other battery
except for a 12 V sealed battery as a power source.
Do not reverse the battery ...
Wheel Rotation Sensor Air Gap Inspection
Raise the front/rear wheel off the ground (see Front/Rear
Wheel Removal in the Wheels/Tires chapter).
Measure the air gap between the sensor and sensor rotor
at several points by turning the wheel slowly.
Thickness Gauge [A]
Wheel Rotation Sensor Air Gap
Standard:
Front 0.4 1.6 mm ...