What exactly does detonation or pre-ignition sound like?
I'm wondering if anyone's got a video of a bike detonating or pre-igniting. Can't find one on youtube.
Ever since I've had the 300, before I ever rebuilt it or changed the jetting, it has always had a low grumble or what I would call a sputter at low throttle openings.. but I've always been paranoid that is it the "marbles in engine" sound everyone describes when talking about detonation. I'm running 91 octane (highest available at pump, roughly 98 octane RON)/non-ethanol fuel. Never done a squish test and no idea what compression ratio the engine is running at.
Hopefully I'm just being paranoid, but would rather be safe than sorry. It is always at sustained throttle openings, except WOT.
Last edited by GGRider01; 04-13-2016 at 12:21 AM.
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