Yamaha 9.9 2012--choke linkage

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thinwater
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Yamaha 9.9 2012--choke linkage

Postby thinwater » Fri Jul 29, 2016 3:01 pm

A week ago I started having terrible starting problems on one engine. I was half way through pulling the carb for a cleaning (first time) when I realized that the little clip attaching the manual choke linkage had failed, allowing the link to fall off. Fortunately, you can work the choke manually without the linkage if the cover is off. Problem solved, but I did have to order the part.

I took the carb off and cleaned it anyway (2 bolts, 2 linkage clips, fuel line--easy on port, probably less fun on starboard). I was curious. I have treated all of the gas with Biobor EB, never drained the bowl, and never run it MT. I do have a silica gel vent filter. The carb bowl was shiny, no gum, no corrosion.

Just sharing.

amytom
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Re: Yamaha 9.9 2012--choke linkage

Postby amytom » Sat Jul 30, 2016 11:44 am

Good to hear. I've had issues in the past but since you hooked me up with that vent filter they slowed down. Haven't pulled a carb in at least a year now.

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Re: Yamaha 9.9 2012--choke linkage

Postby bg5w » Tue Aug 02, 2016 10:28 am

Ahhh-- what vent filter would that be?

Bob Gruber
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thinwater
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Re: Yamaha 9.9 2012--choke linkage

Postby thinwater » Wed Aug 03, 2016 8:58 pm

H2OUT. E-10 gasoline absorbs water from the air, and that water makes it more corrosive. A silica gel filter stops it. I'm using a prototype, Anytom has an H2OUT ADV2R I believe.

The other thing that helps is a good corrosion inhibiting additive. I've tested a lot of them (lab), and only a few are tops:
* Biobor EB. I use this one.
* Merc Quickstore
* Seafoam


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