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Old May 20th, 2008, 07:53 PM
ManateeLady ManateeLady is offline
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Default 2001 2 stroke 40hp Mercury starting problems

My motor has only been used about 12x since purchasing new in 2001. I have continually had a problem in that it starts fine after sitting for months, idols ok and runs good but when turned off for anytime after running for 45min to 1 hour...it will not restart. I have had to be towed 3x under same conditions...started, ran for 1 hour, shut down - won't restart. Any ideas? Have changed the plugs and cleaned the carburetor. Many thanks.
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Old May 20th, 2008, 08:17 PM
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hkeiner hkeiner is offline
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Default Re: 2001 2 stroke 40hp Mercury starting problems

First thing that I would check, when a motor does not start, is whether there is a good spark. If there is no spark, then you need to do some troubleshooting with a multi-meter and DVA meter to figure out why no spark. If you have a strong spark when the motor won't start, then I would check the fuel delivery system for problems. The below two links may be of help to you.

Ignition: http://dolphinmarineservice.homestead.com/ign5.html

Fuel: http://www.marinepartsman.com/Mercur...2001/EN_17.PDF
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Old May 20th, 2008, 09:52 PM
ManateeLady ManateeLady is offline
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Default Re: 2001 2 stroke 40hp Mercury starting problems

Quote:
Originally Posted by hkeiner View Post
First thing that I would check, when a motor does not start, is whether there is a good spark. If there is no spark, then you need to do some troubleshooting with a multi-meter and DVA meter to figure out why no spark. If you have a strong spark when the motor won't start, then I would check the fuel delivery system for problems. The below two links may be of help to you.

Ignition: http://dolphinmarineservice.homestead.com/ign5.html

Fuel: http://www.marinepartsman.com/Mercur...2001/EN_17.PDF
Thanks so much, I will read up on all this and work through. I appreciate the advice. Will advise if this helps.
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