Grind the seating surface only until it is smooth.
NOTICE
Do not grind the seat too much. Overgrinding will reduce valve clearance by sinking the valve into the head. If the valve sinks too far into the head, it will be impossible to adjust the clearance, and the cylinder head must be replaced.
If the outside diameter of the seating surface is too small, repeat the 45° grind until the diameter is within the specified range.
Widened Width [A] of engagement by machining with 45° cutter
Ground Volume [B] by 32° cutter 32° [C]
Correct Width [D]
Ground Volume [E] by 60° cutter 60° [F]
If the outside diameter of the seating surface is too small, repeat the 45° grind [A] until the diameter is within the specified range.
Original Seating Surface [B]
NOTE
If the outside diameter [A] of the seating surface is too large, make the 32° grind described below.
If the outside diameter of the seating surface is within the specified range, measure the seat width as described below.
To make the 32° grind, fit a 32° cutter into the holder, and slide it into the valve guide.
Turn the holder one turn at a time while pressing down very lightly. Check the seat after each turn.
NOTICE
The 32° cutter removes material very quickly.
Check the seat outside diameter frequently to prevent overgrinding.
After making the 32° grind, return to the seat outside diameter measurement step above.
If the seat width is too narrow, repeat the 45° grind until the seat is slightly too wide, and then return to the seat outside diameter measurement step above.
If the seat width is too wide, make the 60° [A] grind described below.
If the seat width is within the specified range, lap the valve to the seat as described below.
To make the 60° grind, fit 60° cutter into the holder, and slide it into the valve guide.
Turn the holder, while pressing down lightly.
After making the 60° grind, return to the seat width measurement step above.
Correct Width [B]
NOTICE
Do not lap the valve to the valve seat, using the grinding compound. It will come off oxide film treated surface of the valve.
Lower Fairing Installation
Installation is the reverse of removal. Note the following.
When installing the pad [A], align the edge of the pad and
the marking of the fairing [B].
When installing the pad [C], align the edge of the pad and
the fairing [D], and fit the edge of the pad to the boss [E].
Insert the hoo ...
Interlock Operation Inspection
Raise the rear wheel off the ground with the stand [A].
1st Check
Start the engine to the following conditions
Condition:
Transmission Gear → 1st Position
Clutch Lever → Release
Sidestand → Down or Up
Turn the ignition switch to ON and push the starter butto ...
Information for Coolant
To protect the cooling system (consisting
of the aluminum engine and
radiator) from rust and corrosion, the
use of corrosion and rust inhibitor
chemicals in the coolant is essential. If
coolant containing corrosion and rust
inhibitor chemicals are not used, over
a period of time, the cooling ...