Maintenance & Technical > KX500 Original

Octane Booster

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Panhead:
I just bought my K5 and have been searching the threads quite a bit.  On my maiden voyage in sandy conditions, I heard quite a bit of a knock from the engine.  Not use to hearing anything like this, but this is my first K5.  I was running 93 octane.  I drag race one of my other bikes, so go to the track once in a while where I can buy VP racing fuel.  I believe the bike is stock with a gnarly pipe.  The guy I bought it from said it still has the same plug in it from when he bought it in '04.  What do I need to run in this bad boy as far as fuel?  Is octane boost adequate?    Hit me with the knowledge!  Thanks.

stewart:
clean the filter and pilot jet and find out the mian and pilot size and what oil and ratio  and plug numbers,,, let us no

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