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  #1  
Old 07-11-2012
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Starter Relay

We occasionally experienced trouble starting our engine once in a while. Usually it was when it was hot, like at a fuel dock, or a quarantine dock - places you don't want to get stuck. Motors and switches were replaced and the problem persisted.
At a Mack Boring seminar I asked the instructor if this issue was a starter issue with Yanmars. He did confirm the problem and said Yanmar now installs starter relays to activate the solenoid. Interestingly, several others in the audience shared the same problem.
I've now installed a Yanmar relay, part number 129100-77910, and will report back if our issue is truly resolved.

Sam - PSC34 - s/v Grace
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Old 07-11-2012
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Starter Relay

Having a similar problem. Can take a few pushes of the button. Replaced switch and button.
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Old 07-11-2012
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Re: Starter Relay

I have had a similar problem with my 31 for 7 0r 8 years. About once every three or four outings it takes a second push to get anything from the starter button. Just dead, no reaction at all. Sometimes it takes a third press on the button and I think once a fourth.

I have read several theories on the problem but since it has never caused a problem I have stayed lazy. I sure hope your solution works well. That will get me moving.

John Van Dinther
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Old 07-12-2012
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Re: Starter Relay

Quote:
Originally Posted by wmjr View Post
I have had a similar problem with my 31 for 7 0r 8 years. About once every three or four outings it takes a second push to get anything from the starter button. Just dead, no reaction at all. Sometimes it takes a third press on the button and I think once a fourth.

I have read several theories on the problem but since it has never caused a problem I have stayed lazy. I sure hope your solution works well. That will get me moving.

John Van Dinther
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PSC 31 #28
Ditto, and I have the second relay that's wired to the starter relay, although it's taken 2, I never remember 4. I figured is was a stuck relay not fully engaging. I since I have 2 relays, it could be either one.
Tom
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Old 07-12-2012
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Re: Starter Relay

Had same problem on my Yanmar 3GM about 6-7 years ago.
Seems that voltage is lost on wiring harness. (to many connections)
Installed small, most basic auto relay.(inexpensive) Did the trick, have not had problem since.
Have told many Yanmar owners...also hear problem with some other
brands.
There is extensive info on some old sailnet threads.
Best,
Hugo
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