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Old 15-04-2015, 12:56   #1
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9.9Hp Yamaha Outboard does not stop...

Hi,

I have a 1997 Yamaha 9.9Hp on my cat.
It runs well, but recently fails to stop when I turn the ignition key to the stop position.
Need to disconnect the fuelhose to eventually let it stop by a lack of fuel.

Any thoughts?
Would like to avoid replacing the ignition key.

Thanks in advance,

Franziska
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Old 15-04-2015, 12:59   #2
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Re: 9.9Hp Yamaha Outboard does not stop...

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Originally Posted by Franziska View Post
Hi,

I have a 1997 Yamaha 9.9Hp on my cat.
It runs well, but recently fails to stop when I turn the ignition key to the stop position.
Need to disconnect the fuelhose to eventually let it stop by a lack of fuel.

Any thoughts?
Would like to avoid replacing the ignition key.

Thanks in advance,

Franziska
Check the connections from the ignition switch to ground. Typically when you turn off small engines it grounds out the ignition circuit so no more electricity flows to the plugs. Check for a loose or disconnected wire to begin with.
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Old 15-04-2015, 14:01   #3
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Re: 9.9Hp Yamaha Outboard does not stop...

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Originally Posted by ontherocks83 View Post
Check the connections from the ignition switch to ground. Typically when you turn off small engines it grounds out the ignition circuit so no more electricity flows to the plugs. Check for a loose or disconnected wire to begin with.
Plus check for corrosion on the ground connections.
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Old 15-04-2015, 14:06   #4
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Re: 9.9Hp Yamaha Outboard does not stop...

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Originally Posted by Franziska View Post
Hi,

Any thoughts?
Would like to avoid replacing the ignition key.
Just out of curiousity why do you want to avoid replacing the ignition if that ends up being what it is?
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Old 15-04-2015, 21:04   #5
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Re: 9.9Hp Yamaha Outboard does not stop...

Thanks! Will look at those once at the boat.

@On the rocks.

If that is what it is I would first try to fix it before throwing something away and buy new.
Less waste, less cost.
I do not like the unfortunately common throw away mentality.

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Old 16-04-2015, 08:39   #6
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Re: 9.9Hp Yamaha Outboard does not stop...

Pulling the choke out should stop the engine.
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Old 16-04-2015, 08:44   #7
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Re: 9.9Hp Yamaha Outboard does not stop...

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.......I do not like the unfortunately common throw away mentality.

��


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You would take a switch apart and try to fix it? Sometimes, replacement is simpler, less expensive and more reliable than trying to fix something. Small switches are not typically designed to be taken apart, repaired and put back together again.

How many of your hours would you spend trying to repair a $10 part?
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Old 16-04-2015, 10:17   #8
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Re: 9.9Hp Yamaha Outboard does not stop...

I would open it if it's easy & see if it can be easily fixed.
If not,get a new one, of course.

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