Merc 9.8 carb needle valve turnout

tmryan

Cadet
Joined
Dec 8, 2001
Messages
27
Can anyone tell me the needle valve turnout for a l982 Mercury 9.8hp motor. Thanks, Tom
 

Trent

Captain
Joined
Nov 17, 2001
Messages
3,333
Re: Merc 9.8 carb needle valve turnout

Start with 1.25 to 1.50 turns from seated.. With the engine warmed up in gear in the water. Every engine is different. But thats a good starting point.
 

ODDD1

Lieutenant Junior Grade
Joined
Jan 23, 2001
Messages
1,054
Re: Merc 9.8 carb needle valve turnout

up here,[colder water] they usually run 1 1/2 to 1 3/4 turns out from seat......
 
Top