Not to hijack the thread since my beancan(s) on my 81 R80G/S and 82 R100RS are not misfiring or cutting out but the RS does have an issue with the idle hanging up at high RPM once the engine is fully warmed up. I have read here and elsewhere this is probably due to a sticky advance mechanism in the bean can. I suppose I should confirm this with a timing light but then again, a very high idle is going to show timing advance no matter what is causing it.
I've read here about maintaining the bean can but I'm assuming this means disassembly. There is a couple of great links in Kurt's sig on how to do this although what lubricant to use, how and how much seems to be up for discussion.
I've also read it's possible to lube the advance unit via the little opening cover on the side.
So what do you guys recommend I do? And yes, I'm a tad reluctant to tear the thing apart but then again, I do have a spare one to practice on. I'm not sure it was re-assembled properly by the PO though. I bought is as a spare.