| Author |
Message |
    
Otis R Greer
New member
Username: brokerecord
Post Number: 1
Registered: 06-2008
| | Posted on Saturday, June 21, 2008 - 06:14 pm: | 
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Hopefully Mr Graham, You can tell about my 25 HP Mariner # OD 073795. Also is premium gas required when filling up? Thank you and from what I've read, a very nice web site, Thanks, Greer |
Graham Lamb
Senior Member
Username: galamb
Post Number: 3463
Registered: 05-2007
| | Posted on Sunday, June 22, 2008 - 01:56 pm: |
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Otis, that is a 1991 model - fantastic motor.
You should use just "regular" unleaded (86 or 87 octane with no more than 15% Ethanol) and Marine TCW-3 rated 2 cycle engine oil mixed at 50:1
You may want to add 2 cycle fuel stablilizer (sold under names such as STABIL etc) available at any automotive place. Adding a bit "all the time" helps keep moisture out of the gas and can help prevent clogs in the carb... |
Otis R Greer
New member
Username: brokerecord
Post Number: 2
Registered: 06-2008
| | Posted on Sunday, June 22, 2008 - 02:03 pm: |
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Thanks alot for the info. I like it alot, the only time it acts up is when there are 2-3 boats waiting at the ramp, that's when I feel like pulling the drain plug, giving it a little gas and swim for shore. |
Graham Lamb
Senior Member
Username: galamb
Post Number: 3469
Registered: 05-2007
| | Posted on Sunday, June 22, 2008 - 02:26 pm: |
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Otis, it may not have a thermostat installed. Merc liked to save 50 cents at production time and leave them out of the smaller motors.
If you don't have one or it's not functioning properly it can severely affect the idle. It's well worth the 20 bucks at any Merc dealer to grab and and put it in.... |
Otis R Greer
New member
Username: brokerecord
Post Number: 3
Registered: 06-2008
| | Posted on Monday, June 23, 2008 - 01:41 pm: |
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Thanks Graham, I checked the thermostate and it was a bare hole. I went to dealer and got new gasket, o-ring, and a mighty expensive piece of brass. Installed, and Dee and I are going to the lake later this evening. Thanks so much, Greer |
Robertwill
Visitor
| | Posted on Tuesday, June 24, 2008 - 04:24 pm: |
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Hoping you can help me with my 15hp Mariner year.
Mariner 15ML Code:684c L Serial #340637
Thanks, Rob.. |
Graham Lamb
Senior Member
Username: galamb
Post Number: 3506
Registered: 05-2007
| | Posted on Tuesday, June 24, 2008 - 04:44 pm: |
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Rob, that is a 1988 Mariner built by Yamaha for Mercury... |
Robertwill
Visitor
| | Posted on Tuesday, June 24, 2008 - 05:44 pm: |
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Thank You Graham, that was a very quick reply. I hope I can return the favor sometime.
Thanks again, Rob. |
