What would be max. operating RPM for 1985 johnson bored .020 over with Weisco pistons ?
M mike francois Cadet Joined Jun 6, 2002 Messages 17 Mar 9, 2003 #1 What would be max. operating RPM for 1985 johnson bored .020 over with Weisco pistons ?
D Dhadley Supreme Mariner Joined Feb 4, 2001 Messages 16,978 Mar 9, 2003 #2 Re: RPM 1985 70hp Johnson Same as before - look for 6000 with an average load. But thats AFTER the break-in and you are positive you have fixed the cause of the first failure.<br /><br />Good luck!
Re: RPM 1985 70hp Johnson Same as before - look for 6000 with an average load. But thats AFTER the break-in and you are positive you have fixed the cause of the first failure.<br /><br />Good luck!
