How to adjust running timing on my 98 200 Merc?

sbklf

Petty Officer 2nd Class
Joined
Oct 26, 2006
Messages
190
I did a link/sync and a static time adjustment. The book warns to check the timing while running and it seems to imply at wide open throttle. What do people do, run WOT with the cowl off while checking with a timing light? Kevin
 
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