Merc 800 break in

*EdC*

Senior Chief Petty Officer
Thread starter
Joined
Oct 31, 2007
Messages
661
Hi Guys,
Just spent all winter rebuilding my '69 Merc 800. Got it into the test tank last weekend. I had some help with the "link and sync" from the mechanic in the photo. Started on the second turn of the key! :D:D

P3070701-2.jpg


Ran it at idle on AV Low lead at 16 to 1 for about a half hour. Purrrrred. I hope to get it onto the boat in a few weeks. I was wondering, what is the best method to break in my new Baby!:)

Thanks,
Ed
 

OldMercsRule

Captain
Joined
Nov 30, 2006
Messages
3,340
Re: Merc 800 break in

25 to 1 for the first 10-12 gallons of gas vary engine boat speed from 1500 RPMs to 5500 nothing steady up and down up and down.

Then she is ready. JR
 
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