1970 50hp 500 super thunderbolt

Jhunt990

Cadet
Joined
Jul 20, 2017
Messages
8
Hey all,
I'm new to the forum. I just recently procured a boat with the merc 50hp 500 super thunderbolt ser# 2741536. It cold starts poorly and after warming up it still has an occasional miss in one of the cylinders. When I try to throttle it up towards top end it dies. I would like to do a tune up on it but need some basic service info. A parts list would be great too; plugs, wires, etc. Any and all help is greatly appreciated.

Also, on a side note. I am very mechanically inclined and trained. I am able to troubleshoot a variety of issues and have access to lots of tools and testing equipment.

Thanks, Jon
 
Last edited:

Mercurylips

Petty Officer 2nd Class
Joined
Sep 23, 2015
Messages
189
At the top of this page.....click on "Mercury Motor Parts". Since you know the year, model name, and HP, you can take it from there. Not the easiest, but can be done. I order parts here quite a bit. Good luck.
 
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