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Old 04-09-2005, 01:19 AM
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Gas tank additive

Im sure I could find 30 pages on additives however.....I have a yamaha outboard 200 and I want to run some type of an engine clean through the tank. Something to the effect of Sea Foam or something else. My question is what do you guys recommend??

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Old 04-09-2005, 06:32 AM
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bret bret is offline
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Next to Sea Foam I would use Chevron Techron. This stuff is great for intake valves other carbon buildup.
1993 25th Anniversary Limited ProStar 190, #17
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Old 04-09-2005, 09:08 AM
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I've had nice results with Sea Foam.
Previous: 1993 Prostar 205

Red 1998 Ski Nautique, PCM GT40, 310 hp, , Acme 4 blade, Perfect Pass SG/Zbox.


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Old 04-10-2005, 01:49 AM
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I'd go w/ the sea foam!
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Old 04-10-2005, 12:32 PM
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I don't know... I know Sea Foam advertises itself for small 2-strokes, which a 200hp Yamaha definitely is not.

I'd be a little concerned that it might reduce the effectiveness of the lubrication.

The only additive I'd recommend is fuel stabilizer, without checking with Yamaha first..
2002 MariStar 210 VRS 330hp, Tower, Perfect Pass Stargazer, Bimini, Triple KGB Ballast, 400w Clarion XMD3, Bennett X-14 Wake Plate, 1000+ hours and still running great!

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