86 150 ETLJ: No enough screw to adjust advance timing

rickclark

Seaman Apprentice
Joined
May 2, 2010
Messages
39
[h=2]Finishing final steps of tune up with static timing check until I can find my timing light or get another. Retard and pick up timing need no adjustment. However, when attempting to adjust full advance timing, I am a long way from being able to align the mark on the flywheel to the mark on the magneto plate. Need 15 - 20 mm more on screw. Does this mean something else wrong? Can I replace the adjustment screw with a longer one in order to make the adjustment? What's the danger of running this motor without the full advance timing set correctly? I never run at WOT.[/h]
 

99yam40

Fleet Admiral
Joined
Sep 7, 2008
Messages
9,119
I believe Timing should go full advance before WOT, but I do not know much about those older motors
, need to find out what is going on
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Is the rest of the link & sync procedure been done correctly -- and with the throttle cable disconnected?? A service manual is your friend here or you end up chasing your tail. That adjustment bolt was fine when the engine left the factory. It didn't shrink so it something you've done or overlooked that's the problem.
 

rickclark

Seaman Apprentice
Joined
May 2, 2010
Messages
39
Did not disconnect throttle cable. Must have missed that in the manual. Makes sense. Can't imagine would be that much off. Thanks.
 
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