1 - 11GENINFOSPECIAL TOOLSSPECIAL TOOLSThe proper special tools are necessary for complete and accurate tune-up and assembly. Using the correct special toolwill help prevent damage caused by the use of improper tools or improvised techniques. The shape and part number usedfor the special tool differ by country, so two types are provided. Refer to the list provided to avoid errors when placing anorder.NOTE:• For U.S.A. and Canada, use part number starting with “YM-”, “YU-” or “ACC-”.• For others, use part number starting with “90890-”.Part number Tool name/How to use IllustrationYU-1135-A, 90890-01135 Crankcase separating toolThese tool is used to remove the crankshaft fromeither case.YU-3097, 90890-01252YU-1256Dial gauge and standStandThese tools are used to check each part for runout orbent.YU-90050, 90890-01274YU-90050, 90890-01275YM-91044, 90890-04081YU-90063, 90890-01278Crankshaft installing toolCrankshaft installing potCrankshaft installing boltSpacer (crankshaft installer)Adapter (M12)These tools are used to install the crankshaft.YU-1304, 90890-01304 Piston pin puller setThis tool is used to remove the piston pin.YU-24460-01, 90890-01325YU-33984, 90890-01352Radiator cap testerRadiator cap tester adapterThese tools are used for checking the coolingsystem.YU-33975, 90890-01403 Steering nut wrenchThis tool is used when tighten the steering ring nut tospecification.YM-01494, 90890-01494 Damper rod holderUse this tool to remove and install the damper rod.YM-A0948, 90890-01502 Fork seal driverThis tool is used when install the fork oil seal.90890-0113590890-0130490890-0132590890-01352YM-01494 90890-01494YM-A0948 90890-01502