Re: Carb problems following needle shim mod
Quote:
Originally Posted by Easy Rider
Now, it says "or higher." Why would it say that if premium was not good for it?
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I seem to recall an answer to this a few months back (but I can't remember which post) when someone (again, I can't remember who) explained that the higher octane fuel exploded with a sudden bang (due to some chemical or other) while the lower octane gave a "slower" burn, which the gz engine appreciated. :roll:
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