Question about 1989 Suzuki GSX-R 750 K

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Fuel octane use

What octane are yall running? And what would be the pros and cons of running 109 octane on the street?

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I use 87 just like the designers of the bike call for. pros=you'll go faster due to a lighter wallet cons=your bike may blow up

Posted on Nov 10, 2008

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