[/LIST] I have recently aquired a 55hp 1968 johnson TRL-10R. I was told it has not ran in 5-6 yrs. but did run. Research on this site has provided considerable information on Hydro-electric shift & that helped me understand & seems to work. The motor wiring was rotten & I have replaced all the bad areas. I do not have a service manual yet, looking at a newer 1971 manual it refers to special testing equipment. I would like to see if anyone could provide information to use ohm / votage meter. I have a new fully charged battery, 12volt power to the pack & 10.8volts to distributer when cranking. When I turn the key off there is spark at the plug. Please recomend a good service manual that would have testing instructions without needing to purchase special equipment. As this is an old motor I will not put many $ into it.