01-06-16, 09:47 PM
Hmm very odd, had similar symptoms with my wife's old zzr400. Unfortunately, I never did resolve it. :-( Does it only become a problem when. travelling at 70 odd? I mean when at stand still can you rev the engine to a similar point? If so, then this may imply it's related to air flow at speed, or the Speed/gear the bike is in. We always suspected the Jap imported zzr400 was restricted based on speed/gear (did try grounding wires from CDI), or the ram air intake.
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