So just to be a pendent, it is not preignition, it will be detonation which is the uncontrollable ignition of end gases. None of which matters but is a symptom of lean, over advance, low octane etc. Expect lean.
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'07 EC300 GG
'14 TXT250 GG
'? 496 CPI Cheetah RZ/RGV hybrid
'22 765 Street Triple RS
'21 XTrainer
'69 Stinger T125 Suzuki
'23 TRS 250RR (it's a Trials thing)
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