Mariner 75 Timing

Ady B

Cadet
Joined
Jan 25, 2009
Messages
8
I want to time and sync my engine but Im not sure of correct settings. One manual says 2 degrees BTDC idle and 18 degrees BTDC max and another says 2 degrees BTDC idle and 28 degrees BTDC max. Which is correct? My engine is a 1989 year, 3 cylinder, serial OC215558.
Thanks in advance for any info.
Ady B
 
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