Quote Originally Posted by forchetto View Post
Is yours fitted with a metal-clad spark plug cap?. These were a notorious source of trouble when Honda used them in the 70's and 80's.
It got so bad that good dealers changed them before delivery,at their own expense, to avoid disgruntled riders coming back with the same troubles in the wet.
They were originally fitted to cut down radio-TV interference, but nowadays with FM, UHF and Digital transmissions there's no danger in that.
The metal clading is held by little tabs that can be bent out and they reveal a normal plastic cap. Otherwise just change it for a non-metallic one.
It's one of those things that the Japs abandoned years ago and the Chinese have adopted for some reason, old stock?, old design?.

There's a thread that I started a while ago here:
http://www.mychinamoto.com/forums/showthread.php?t=341

Thanks again, but that`s not the case. Mine has a normal rubber cap. Maybe some dielectric grease in the upper electrode? Should work better than a spray of WD 40, I think. If you know of a proven way to avoid those problems, please let me know.