7 1/2 hp seahorse need fuel mix

chrish0514

Recruit
Joined
May 5, 2009
Messages
1
I think its a 56 or 57 model AD 11 i need to know the fuel mixture and can i use 2 cycle oil or do i use engine oil?
 

film495

Petty Officer 1st Class
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Apr 8, 2009
Messages
295
Re: 7 1/2 hp seahorse need fuel mix

pretty sure you want to make sure it ways tcw3, the 2 stroke standard
 

56 rude

Banned
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Aug 8, 2008
Messages
198
Re: 7 1/2 hp seahorse need fuel mix

50 to1 is not correct, your motor reqiures 24 to 1,you might get away with 50 to 1 but do you want to take that chance?
 

Chinewalker

Fleet Admiral
Joined
Aug 19, 2001
Messages
8,902
Re: 7 1/2 hp seahorse need fuel mix

It is a plain bearing motor. It needs a 24:1 mix. Use TCW3 rated oil mixed with 87 or 89 octane gasoline.
- Scott
 

lindy46

Captain
Joined
Nov 27, 2008
Messages
3,886
Re: 7 1/2 hp seahorse need fuel mix

Yup, AD-11 is a 1957. Takes 24:1 fuel to oil ratio.
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,226
Re: 7 1/2 hp seahorse need fuel mix

Yup, AD-11 is a 1957. Takes 24:1 fuel to oil ratio.

Actually, when it was new it came with a four gallon tank and took a quart of oil to four gallons. That's 16:1. 24:1 is ok, but don't dare going leaner.
 
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