Broke down

[alan sherman]

My bike had blocked heater pipe.  I cleared it with a bicycle pump and a football adapter.  The blockage was a flake of swarf, presumably form engine manufacture.  Still get some stuttering on some days.  Bike is kept outisde and the misty cold days can cause issues.

[hotmetal]

I had exactly that (swarf) with my old ZX6R. It was on a cold foggy night and I'd been on a constant throttle on the motorway for hours which does not help. They were known for it though. Never had it on my gen 1 and I've ridden it through a lot of cold winters.