I just purchased a 50th anniversary 65hp Johnson that has not been run for 5 years. I brought it to a mechanic wo replaced the shifter cable, cleaned the carbs & got the motor running...he & I were amazed by the great operation of the motor. I took the motor out for a test drive & it worked great for about 30 min. Then it just shut down and would not re-fire. It appeared that the battery didn't have enough juice. Installed a new battery, same deal. The starter bendix engages the flywheel but doesn't have enough power to turn it over fast enough to start. Removed plugs & engine does turn a great deal faster & there is lots of fire on the plugs. So I bought a new starter, problem fixed...right? ... Wrong!!! Same problem with the new starter. It just appears that there is too much compression for the starter to operate properly. Brainstorm....could there be a timing issue, & if so what should I try next?? Any help on this frustration would be greatly appreciated.<br /><br />Thanx