-
20 hp electric start conversion
I recently started to add electric start to my ‘97, 20 hp Merc. I was fortunate to find a local guy that sold me most of the required parts for the conversion. He supplied me with a flywheel from a 2003, 25 hp motor which had the ring gear installed already. I thought I’d just swap flywheels but noticed that the newer flywheel had 4 magnets and my original one had two. I suspect that the extra magnets were to provide extra power output from the stator coil but that’s only a guess.
Question is, can the 4 magnet flywheel be used on my older motor or will the extra magnets “confuse” or mess up the original switch box / ignition system? I was thinking it may be safer to just swap the ring gear onto my old flywheel.
Any comments or thoughts would be appreciated. Thx
Last edited by bosco659; 12-03-2019 at 06:26 PM.
-
Mercury 3L/4 Stroke/Verado Moderator
Really going to need your serial number, and the Part Number for the flywheel in "question".
-
Ok will dig up the numbers and post. Thanks.
-
Flywheel p/n: 258 859232C
engine s/n: 0G487978
1997 20ML
-
Mercury 3L/4 Stroke/Verado Moderator
Appears that flywheel may be from the later serial number group (with an auxillary stator installed). That's about the best I have to offer- I doubt it will post a problem.
-
Ok thanks. I’ll have to wait for the springtime to test it.