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 Engine knocking Yamaha 4 stroke
#1684601
10/22/07 12:04 PM
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Joined: May 2005
Posts: 223
slewft
OP
Outdoorsman
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OP
Outdoorsman
Joined: May 2005
Posts: 223 |
I have a 2001 Yamaha 100 4 stoke. Friday on the way in from fishing it started knocking. I was running at about 5500 rpm slowed down to 2000 rpm and it would stop, gave it a little gas and it would start again. While filling up Friday mourning I notice a dark stain on top of the gas tank. It looks like a water stain. Could water have got into the gas tank and caused it to knock?
If you must mount the gallows, give a jest to the crowd, a coin to the hangman, and make the drop with a smile.
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Re: Engine knocking Yamaha 4 stroke
[Re: slewft]
#1684647
10/22/07 12:31 PM
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Joined: Apr 2007
Posts: 1,984
Michial Thompson
Extreme Angler
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Extreme Angler
Joined: Apr 2007
Posts: 1,984 |
Sounds like a bearing or a piston went out. I wouldn't run it again until you have it checked out.
Knocking is not a good sign
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Re: Engine knocking Yamaha 4 stroke
[Re: Michial Thompson]
#1684710
10/22/07 12:59 PM
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Joined: May 2003
Posts: 12,334
PGR Mike
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 12,334 |
Anytime you hear a knock, stop running. Something is right. The more you run it, the more you damage it. And it may already be too late to repair.
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Re: Engine knocking Yamaha 4 stroke
[Re: Michial Thompson]
#1684713
10/22/07 12:59 PM
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Joined: Feb 2003
Posts: 55,506
SkeeterRonnie
Super Freak
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Super Freak
Joined: Feb 2003
Posts: 55,506 |
sounds like a piston pin has come loose....
Take it to Eldon and Tommy at Rockwall Marine.... I am "more than" thoroughly impressed with the service I received from them on my Yammie!!!
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Re: Engine knocking Yamaha 4 stroke
[Re: Michial Thompson]
#1684715
10/22/07 01:00 PM
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Joined: May 2005
Posts: 223
slewft
OP
Outdoorsman
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OP
Outdoorsman
Joined: May 2005
Posts: 223 |
Thank Michial I'm going to do that after I remove all the gas and check it for water.
If you must mount the gallows, give a jest to the crowd, a coin to the hangman, and make the drop with a smile.
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Re: Engine knocking Yamaha 4 stroke
[Re: slewft]
#1684745
10/22/07 01:14 PM
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Joined: May 2003
Posts: 12,334
PGR Mike
TFF Guru
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TFF Guru
Joined: May 2003
Posts: 12,334 |
You don't have to remove all the gas. Disconnect your fuel line fitting, and pump the bulb. Get a quart container that is clear, and fill it up. If you have water in your fuel, you will see it seperate.
If you don't, then no use wasting your time draining all your fuel. Simply put your fuel fitting back on and your done!
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Re: Engine knocking Yamaha 4 stroke
[Re: PGR Mike]
#1684767
10/22/07 01:28 PM
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Joined: May 2005
Posts: 223
slewft
OP
Outdoorsman
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OP
Outdoorsman
Joined: May 2005
Posts: 223 |
I'll try that, and thanks for the info.
If you must mount the gallows, give a jest to the crowd, a coin to the hangman, and make the drop with a smile.
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Re: Engine knocking Yamaha 4 stroke
[Re: PGR Mike]
#1684809
10/22/07 01:44 PM
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Joined: May 2005
Posts: 223
slewft
OP
Outdoorsman
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OP
Outdoorsman
Joined: May 2005
Posts: 223 |
Anytime you hear a knock, stop running. Something is right. The more you run it, the more you damage it. And it may already be too late to repair.
I was only 1000 yards from the landing when it happen.
If you must mount the gallows, give a jest to the crowd, a coin to the hangman, and make the drop with a smile.
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