1982 200 plug problem

[JBT3]

I have a 1982 200 that eats spark plugs. The plugs are never fouled, they just stop working. The engine runs fine when a new plug is in, although it runs a little rich at idle. The carb has been taken down and cleaned numerous times, and the float adjusted. The plug usually lasts only a day or so before they go out. They seem to be shorting out or something. Can someone offer any suggestions?

[200xman]

Adjust the valves. I had the same problem on my 200es when I bought it.

[smokinp]

do you have any pics or can you describe what the plug looks like?could be the valves or the timing.

[JBT3]

The plug looks like new. It doesn't have any carbon build up and you can smell the gas on it. If the bike doesn't start with after cranking 5-10 times, I know the plug is dead and I'll put a new plug in and it will start up right away and it will run fine until that plug goes out.

[TimSr]

Have you ever tried one of your "dead" plugs a day or two later?

[JBT3]

Yeah, they don't produce any spark at all.