Recommended service material

| Note required service material is also described in the following. “Fuel pump components” |
Special tool

Specifications
Ignition systemValve seat repair
The valve seats (1) for both the intake and exhaust
valves are machined to three different angles. The seat
contact surface is cut at 45°.
Intake valve
Exhaust valve
Caution
the valve seat contact area must be
inspected after e ...
Conrod crank pin bearing inspection and
selection
Refer to “engine bottom side disassembly” (page 1d-
49).
Refer to “engine bottom side assembly” .
Inspection
Inspect the bearing surfaces for any signs of fusion,
pitting, burn or flaws. If any, replace them with a
specified set of bearings.
Place the plastigauge axially along ...
Using the transmission
The transmission is provided to
keep the engine operating
smoothly in its normal operating
speed range. The gear ratios
have been carefully chosen to
meet the characteristics of the
engine. The rider should always
select the most suitable gear for
the prevailing conditions. Never
slip the c ...