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Timing Marks on Timing Decal

wemertz

New member
My manual says to set the timing on my 71' merc outboard at 23 degrees BTC.
The timing decal does not have a 23 degree mark on it.
It jumps from 10 degrees to 25 degrees with a big void in between.
The question I have is: Do I just approximate where the 23 degree mark should be on the decal?

Thanks

Wayne
 
I got a pair of draftsman dividers measured two degrees,then placed one end on the 25* and measured back into the void and put a mark for 23* .Don't know how accurate it is but she runs beautiful
 
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