| Author |
Message |
    
Chris Cummings
New member
Username: okmacman
Post Number: 2
Registered: 07-2009
| | Posted on Thursday, July 16, 2009 - 04:11 pm: | 
|
I have a '93 40 HP Mariner outboard with new sparks, carbs adjusted by mechanic, and brand-new gasoline. Runs great, but problem is when I bring it back to the marina and am idling in gear through the no wake zone, it will bog down and die.
It will restart, but most of the time I have to lift the fast-idle lever and choke it to start it again.
It was doing this before I took it to the shop and it is still doing it afterward after mechanic adjusted carbs and cleaned the still new plugs. What can I look at next? |
Graham Lamb
Senior Member
Username: galamb
Post Number: 5677
Registered: 05-2007
| | Posted on Friday, July 17, 2009 - 11:57 am: |
|
Time to clean the carb(s) - sounds like either a clog developing in the low speed jet or a sticky float valve.
Having to adjust a carb is the first sign of a future problem. They don't go out of adjustment on their own.
Readjusting is a temporary fix for a proper cleaning at a later time... |
Chris Cummings
New member
Username: okmacman
Post Number: 3
Registered: 07-2009
| | Posted on Friday, July 17, 2009 - 03:09 pm: |
|
Oops, looks like I forgot to put that the mechanic cleaned and adjusted carbs. Sorry. He told me he removed, cleaned and adjusted both carbs. |
Graham Lamb
Senior Member
Username: galamb
Post Number: 5684
Registered: 05-2007
| | Posted on Saturday, July 18, 2009 - 11:30 am: |
|
Try pumping up the bulb on the fuel line (or pumping it when it's having trouble either starting or idling) - if that helps the fuel pump may need servicing (usually a new diaphram). |
Bert A Cosner
New member
Username: b_cosner
Post Number: 1
Registered: 07-2009
| | Posted on Sunday, July 19, 2009 - 04:37 pm: |
|
What year is my Motor? It's a Mercury Mariner
5hp 661 air cooled made by Yamaha,
Serial# S43343 |
Bert A Cosner
New member
Username: b_cosner
Post Number: 2
Registered: 07-2009
| | Posted on Friday, July 24, 2009 - 09:43 am: |
|
Can anyone tell me what year my motor is? I have
a Mercury Mariner 5hp 661 air cooled made by
Yamaha, Serial# S43343. |
