Need Timing Specs Please 😀

Joined
Jun 21, 2022
Messages
62
Can someone provide me the timing specs at idle and max for my 1987 45hp (4 cyl) 2-stroke Mariner engine please? I'm waiting to order a service manual and would like to check all my timing marks.
 

boscoe99

Lieutenant Commander
Joined
Aug 22, 2013
Messages
1,997
What's the engine ID?

Why are you waiting to order the service manual?
 

boscoe99

Lieutenant Commander
Joined
Aug 22, 2013
Messages
1,997
Can't help you. I thought this Mariner might have been made by Yamaha but apparently not. Good luck finding the data you desire.
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,920
Plug....BUHW-2
IDLE TIMING....3-10° ATDC
PICK UP ....0-2°
MAX TIMING AT CRANKING SPEED....32°BTDC
RUNNING TIMING...30°
 
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