GENINFO1 - 8SPECIAL TOOLSCompression gauge90890-03081YU-33223Adapter90890-04082YU-33223-3Compression gaugeAdapterThese tools are needed to measureengine compression.90890-03112YU-03112-CPocket testerThis instrument is needed forchecking the electrical system.90890-03113Engine tachometerThis tool is needed for observingengine rpm.YU-8036-BInductive self-powered tachometerThis tool is needed for observingengine rpm.90890-03141YM-33277-ATiming lightThis tool is necessary for checkingignition timing.90890-04019YM-04019Valve spring compressorThis tool is needed to remove andinstall the valve assemblies.Middle driven shaftbearing driver90890-04058YM-04058-1Mechanical seal installer90890-04078YM-33221Middle driven shaft bearing driverMechanical seal installerThese tools are used to install thewater pump seals.90890-04050YM-04050Bearing retainer wrenchThis tool is needed when removing orinstalling the final drive shaft bearingretainers.90890-04062YM-04062Universal joint holderThis tool is needed when removing orinstalling the universal joint yoke nuts.Tool No. Tool name/How to use Illustration