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GEN
INFO
SPECIAL TOOLS
EC140001
SPECIAL TOOLS
The proper special tools are necessary for complete and accurate tune-up and assembly. Using the
correct special tool will help prevent damage caused by the use of improper tools or improvised tech-
niques. The shape and part number used for the special tool differ by country, so two types are provid-
ed. Refer to the list provided to avoid errors when placing an order.
NOTE:
9For U.S.A. and Canada, use part number starting with “YM-” or “YU-”.
9For others, use part number starting with “90890-”.
Part number Tool name / How to use IIIustration
YU-1135-A, 90890-01135 Crankcase separating tool YU-1135-A 90890-01135
YM-1305, 90890-01305 Crankcase separating bolt
YM-1305 90890-01305
These tools are used to split the crankcase as well
as remove the crankshaft from either case.
YM-1189, 90890-01189 Flywheel puller YM-1189 90890-01189
This tool is used to remove the flywheel magneto.
YU-1235, 90890-01235 Rotor holding tool YU-1235 90890-01235
This tool is used when loosening or tightening the
flywheel magneto securing nut.
YU-3097, 90890-01252 Dial gauge and stand YU-3097 90890-01252
YU-1256 Stand
YU-1256
These tools are used to set the ignition timing.
Crankcase installing tool YU-90050 90890-01274
YU-90050, 90890-01274 Pot
YM-1277 90890-01275
YU-90050, 90890-01275 Bolt
90890-01277
YM-1277, 90890-01277 Adapter
These tools are used to install the crankshaft.
YU-1304, 90890-01304 Piston pin puller YU-1304 90890-01304
This tool is used to remove the piston pin.
YM-1312-A, 90890-01312
Fuel level gauge YM-1312-A 90890-01312
YM-01470, 90890-01470 Fuel level gauge adaptor
YM-01470 90890-01470
This gauge is used to measure the fuel level in the
float chamber.
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