1. This valve seat cutter is developed to grind the valve for repair. Therefore the cutter must not be used for other purposes than seat repair.
2. Do not drop or shock the valve seat cutter, or the diamond particles may fall off.
3. Do not fail to apply engine oil to the valve seat cutter before grinding the seat surface. Also wash off ground particles sticking to the cutter with washing oil.
NOTE
Do not use a wire brush to remove the metal particles from the cutter. It will take off the diamond particles.
4. Setting the valve seat cutter holder in position, operate the cutter in one hand. Do not apply too much force to the diamond portion.
NOTE
Prior to grinding, apply engine oil to the cutter and during the operation, wash off any ground particles sticking to the cutter with washing oil
5. After use, wash it with washing oil and apply thin layer of engine oil before storing.
Marks Stamped on the Cutter
The marks stamped on the back of the cutter [A] represent the following.
60° ........................... Cutter angle [B]
37.5
.......................
Outer diameter of cutter [C]

Valve Seat Repair
Operating ProceduresKIBS Warning Indicator Light (For models equipped
with KIBS)
The yellow warning indicator light in
the meter unit functions as the KIBS
warning indicator light. The yellow
warning indicator light and warning
symbol “KIBS� go on if there is a malfunction
in the KIBS system. When the
warning light is on, the KIBS system
stops functioning. However, th ...
Steering Stem Warp Inspection
Whenever the steering stem is removed, or if the steering
can not be adjusted for smooth action, check the steering
stem for straightness.
If the steering stem [A] is bent, replace the steering stem.
Stem Cap Deterioration, Damage Inspection
Replace the stem cap if its oil seal [A] s ...
Throttle Grip and Cables
Free Play Inspection
Refer to the Throttle Control System Inspection in the Periodic
Maintenance chapter.
Free Play Adjustment
Refer to the Throttle Control System Inspection in the Periodic
Maintenance chapter.
Cable Installation
Install the throttle cables in accordance with the Cable,
...