Electrothermal Valve

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badlar

Seaman Apprentice
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Dec 18, 2004
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2000 Yamaha F100 4-stroke. Is anyone familiar with the electrothermal valves on the above motor. Mine are leaking fuel on the stbd motor. My repair manual addresses the valves but not specifically a fuel leak. Any ideas or suggestions would be welcome. Thanks in advance.
 
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rodbolt

Supreme Mariner
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Sep 1, 2003
Messages
20,066
Re: Electrothermal Valve

remove and inspect them and change the orings, the service manual is just that, it cannot address every conceivable isse.<br /> you see the leak the manual shows what parts are inside it.<br /> its hard to belive the actual valve is leaking cause its way uphill from the fuel.
 
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badlar

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Dec 18, 2004
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Re: Electrothermal Valve

Thanks rodbolt. You're right, it's not the actual valve that's leaking, it's actually dripping from the bottom of the valve housing. Hopefully replacement of the o-rings will be the cure. Thanks again for the quick reply.
 
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rodbolt

Supreme Mariner
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Sep 1, 2003
Messages
20,066
Re: Electrothermal Valve

if you remove the carbs dont touch any of the butterfly adjustments
 
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badlar

Seaman Apprentice
Joined
Dec 18, 2004
Messages
40
Re: Electrothermal Valve

Looking at the exploded drawing in my manual, it appears that I can remove the valve housing and replace all the o-rings without disturbing the carbs. Thanks again.
 
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