Yamaha XT660R S Service Manual page 21

Tool No.
Thickness gauge
90890-03079
This tool is used to measure the valve
clearance.
Compression gauge
90890-03081
These tools are used to measure the
engine compression.
Pocket tester
90890-03112
This tool is used to check the electrical
system.
Timing light
90890-03141
This tool is used to check the ignition tim-
ing.
Pressure gauge
90890-03153
This tool is needed to measure fuel pres-
sure.
Digital circuit tester
90890-03174
This tool is used to check electrical sys-
tem.
Fuel pressure adapter
90890-03176
This tool is needed to measure fuel pres-
sure.
Middle driven shaft bearing driver
Mechanical seal installer
Driver
90890-04058
Installer
90890-04132
These tools are used to install the
mechanical seal.
Tool name/Function
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