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Gas Ratio for Johnson 5.5hp CD-17

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wayner69
New member
Username: wayner69

Post Number: 1
Registered: 02-2007
Posted on Saturday, February 24, 2007 - 07:40 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Just purchased this motor. What is the gas/oil ratio of this motor? Can anybody get me any info about this motor? Thanks!
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foxman
Visitor
Posted on Wednesday, February 28, 2007 - 08:47 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

Cant remember when this engine was built. If it is a green metal shroud (early 1950's late 1940s stick with 25:1. That should be a bit much for red and white (mid 1950's) 30:1 maybe? If it is 1960's (white coloured shroud or later you should be god for 50:1). Silly question but is S & O decal still there? if so should say on that.
Good Luck
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ernie
Senior Member
Username: ernie

Post Number: 598
Registered: 01-2002


Posted on Thursday, March 01, 2007 - 07:43 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Moderator/Admin Only)

It should have a 6 gallon gas tank. You need to use a quart of 30W non detergent oil for each 6 gallons of gas. DO NOT use any other mix or late oils in this old engine. It has plain bearings and won't live very long on the new oils or ratios.
For info try the antique outboard club at www.aomci.org
Hope this helps
Ernie

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