Mariner 25 timing adjustments...help

parryboy

Cadet
Joined
Feb 12, 2005
Messages
11
Can anyone tell me the best way to tune my engine. Just cleaned carb but it seems to running a bit fast on idle.
 

Laddies

Banned
Joined
Sep 10, 2004
Messages
12,218
Re: Mariner 25 timing adjustments...help

Parry, those 25s are kinda touchy you need to get a manual and go by the instrutions to get it right
 

hondon

Lieutenant Commander
Joined
Jun 11, 2001
Messages
1,922
Re: Mariner 25 timing adjustments...help

It would help to establish just what you have.Sometime ago ,there was a 25 in your market made by Yamaha.Then we get into the various incarnations of the Merc 25 2 strokes.OR,are we dealing with a 4 stroke?
 
Joined
Mar 20, 2005
Messages
8
Re: Mariner 25 timing adjustments...help

Since your in the uk I assume it's probably a 25ml two stroke as I don't see many 4/strokes in the merc brand as yet. If you can give me the serial number and tell me is it remote or tiller I'll post a set up guide for you. I'm on the Isle of Skye so if you get stuck I can send yu some copies in the mail
 
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