1 - 17 SPECIAL TOOLS GEN INFO Tool No. Tool name/How to use Illustration 90890-04066 YM-04066 Valve guide reamer (ø6) Valve guide reamer (6.0 mm) This tool is needed to rebore the new valve guides. 90890-04081 YM-91044 Spacer (crankshaft installer) Pot spacer This tool is used to install the crankshaft. YM-91044 90890-04082 Extension This tool is used to measure engine com- pression. 90890-04086 YM-91042 Universal clutch holder This tool is needed to hold the clutch car- rier when removing or installing the car- rier nut. 90890-04128 YM-04128 Bearing retainer wrench Middle gear bearing retainer This tool is needed when removing or installing the bearing retainers.
90890-04130 YM-04059 Adapter (M16) Adapter #13 This tool is used to install the crankshaft. 90890-04132 YM-33221-A Mechanical seal installer Water pump seal installer This tool is used to install the water pump seal.