" If there is any one manual t
" If there is any one manual that covers three years of 40 hp engines.All are OMC but all are different.72 & 74 are Even and 73 is Johnson. Have Clymer manual and is no good on most similar things. Doesn't even have correct wiring diagram on 74. Solinoid check listed is in error, not for all types solinoid on elec start. Manufacturer changed a few things right about then so all parts are not the same, Don't know if specs are either.Does your manufacturers set cover three years in a row or would i have to get more than one set for the different engines although they are real close, but not exact. "
" If there is any one manual that covers three years of 40 hp engines.All are OMC but all are different.72 & 74 are Even and 73 is Johnson. Have Clymer manual and is no good on most similar things. Doesn't even have correct wiring diagram on 74. Solinoid check listed is in error, not for all types solinoid on elec start. Manufacturer changed a few things right about then so all parts are not the same, Don't know if specs are either.Does your manufacturers set cover three years in a row or would i have to get more than one set for the different engines although they are real close, but not exact. "