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 Motor won't start in the water
#8070977
10/03/12 08:34 PM
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Joined: Jun 2011
Posts: 16
Beck131
OP
Green Horn
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OP
Green Horn
Joined: Jun 2011
Posts: 16 |
I've got a 1996 Evinrude 115hp that I bought used. Had it checked by a mechanic and everything seems in good order. It will start fine at the house hooked up to a hose but when I put it in the water it will not start unless I give it 1/2 to full throttle, even after I've run it all day. It also tends to die at idle. I've turned up the idle which helped that some. Any ideas what could be the problem?
Thanks
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Re: Motor won't start in the water
[Re: Beck131]
#8071695
10/03/12 11:35 PM
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Joined: Jan 2003
Posts: 825
waydon1
Pro Angler
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Pro Angler
Joined: Jan 2003
Posts: 825 |
It sounds like you are putting the idle exhaust relief ports under water... If the engine is sitting real low in the water and the ports are under water you could have starting and idle problems...
Two hole's right below the cowl on the back of the engine... It starts at your house because there is no back pressure on the exhaust....
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Re: Motor won't start in the water
[Re: Beck131]
#8072125
10/04/12 01:32 AM
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Joined: Nov 2008
Posts: 3,356
jimmye123
TFF Team Angler
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TFF Team Angler
Joined: Nov 2008
Posts: 3,356 |
OR LEAKING HEAD GASKETS, DONT ASK HOW I KNOW, SAME DEAL RAN FINE ON HOSE, IN WATER NOTTA
Fun-N-Sun Metro Director
06 Legend le21
Fast cars, fast boats,
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Re: Motor won't start in the water
[Re: Beck131]
#8073482
10/04/12 12:07 PM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
Fuel mixture richens with motor in the water. Caused by exhaust back-pressure. I have seen this caused by a carb bleeding fuel, choke solinoid leaking, fowled spark-plugs or you could have 1 cylinder not hitting from bad coil or power-pack. Yes can be a head gasket. Was compression checked before purchase?
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
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Re: Motor won't start in the water
[Re: waydon1]
#8074426
10/04/12 03:53 PM
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Joined: Jun 2011
Posts: 16
Beck131
OP
Green Horn
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OP
Green Horn
Joined: Jun 2011
Posts: 16 |
It sounds like you are putting the idle exhaust relief ports under water... If the engine is sitting real low in the water and the ports are under water you could have starting and idle problems...
Two hole's right below the cowl on the back of the engine... It starts at your house because there is no back pressure on the exhaust.... I don't think this is the case but I'll double check next time I'm out. Thanks
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Re: Motor won't start in the water
[Re: gary purdy]
#8074437
10/04/12 03:56 PM
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Joined: Jun 2011
Posts: 16
Beck131
OP
Green Horn
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OP
Green Horn
Joined: Jun 2011
Posts: 16 |
Fuel mixture richens with motor in the water. Caused by exhaust back-pressure. I have seen this caused by a carb bleeding fuel, choke solinoid leaking, fowled spark-plugs or you could have 1 cylinder not hitting from bad coil or power-pack. Yes can be a head gasket. Was compression checked before purchase? Compression is fine. Is there an easy way to check the other possible causes you listed? I don't have much experience working on motors so unless it's an easy check I guess I'll just need to take it in for service. Thanks
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Re: Motor won't start in the water
[Re: Beck131]
#8078630
10/05/12 04:13 PM
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Joined: May 2003
Posts: 11,586
gary purdy
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 11,586 |
Sounds like you need to take it to a boat mechanic. Sorry
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD
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Re: Motor won't start in the water
[Re: Beck131]
#8089319
10/08/12 09:30 PM
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Joined: Nov 2009
Posts: 770
Performance Outboards
Pro Angler
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Pro Angler
Joined: Nov 2009
Posts: 770 |
Week fuel pump not keeping carbs full of fuel, or choke primer not working properly. Cary
Call & Arrange your powerhead re-build today! I can work with trade-ins & I'll give you more for your core! Need a boat mechanic to come to you? I'm a Mobile Marine Tech. also. Call & schedule today! 281-312-9856
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Re: Motor won't start in the water
[Re: Performance Outboards]
#8112647
10/15/12 03:34 AM
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Joined: Dec 2010
Posts: 177
Alienfisherman
Outdoorsman
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Outdoorsman
Joined: Dec 2010
Posts: 177 |
Week fuel pump not keeping carbs full of fuel, or choke primer not working properly. Cary This
Wishing I was Fishing :]@------------- <)))))><
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