27-02-15, 08:52 AM
I'd be inclined to check the plug caps. I had the same issue with mine, where at full chat about mid way through the rev range it would feel as if I'd hit a puddle of treacle. Ease off the throttle to about 3/4 and is fine. Changed the plug caps to some NGK SD05F and the problem is gone. Very happy meĀ :rollin