Yamaha YP250 Service Manual page 20

Tool No.
90890-03141 Timing light
This tool is needed for detecting
ignition timing.
90890-04101 Valve lapper
This tool is used for removing and
installing the lifter and for lapping the
valve.
90890-04019 Valve spring compressor
-04108 Attachment
These tools are used when removing
or installing the valve and the valve
spring.
90890-04058 Middle shaft bearing driver
-04078 Mechanical seal installer
These tools are used for installing
mechanical seal.
90890-06754 Ignition checker
This instrument is necessary for checking
the ignition system components.
90890-85505 Yamaha bond No. 1215
This sealant (bond) is used for crankcase
mating surface, etc.
Tool name/Usage
1-10
SPECIAL TOOLS
GEN
INFO
Illustration