Mercury 6hp with a 8hp carb?

bills57chevy

Recruit
Thread starter
Joined
Jul 8, 2011
Messages
1
I have a 1987 Mercury 6hp and was wondering if a carb from a 1989 8hp will work?
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Mercury 6hp with a 8hp carb?

Once you get it jetted and adjusted to run right you probably won't notice any difference. That is a 33% difference you are looking at, and changing the carb just isn't going to do much.
 

Laddies

Banned
Joined
Sep 10, 2004
Messages
12,218
Re: Mercury 6hp with a 8hp carb?

Back in those days yhey all used the same carb, with differant jetting same block, pistons, rods and crank, all engines had the same compression ratio, differant years used differant model carbs but the same venturi size. The 6 and 8 HP had no tuning pipe, the 9.9 HP had a 1" ID tube and the 15 HP was larger with a larger carb.
 
Top