This is a twin cylinder and one cylinder has a dead miss. It may run great today, for a week or a month then starts missing. I've replaced the coil/wire, plug and adjusted the valves. I even replaced the carburetor which it needed anyway. It acts like a collapsed lifter but it doesn't have hydraulics. This has been happening on/off for two years and I'm out of ideas. My guess at this point is a sticking valve yet it NEVER backfires thru the exhaust or carburetor and having solid lifters one cannot stick shut. From my experience if this was the case it would/should have a bent push rod but I've checked and neither are bent. Just a dead miss always in the same cylinder that comes and goes. When the miss is gone it starts right, throttle is very responsive and runs like a striped ars Ape, hard and strong. Any ideas, anyone? What am I'm missing? Only thing I haven't done is a compression check because my gauge was on loan and got it back just yesterday. I've had the plug out, put my finger in the hole and it'll blow my finger out. If compression how can it have it for a day or week or month then suddenly loose it then in a day wk or month it suddenly runs great again until? :confused2:
Kawaski FD 620 D cylinder miss
- Thread starter Spikeit
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