tzr125 4dl cuts out when wet

[brian2222]

my 4dl has problems in the wet.normally its fine ,but when its wet it sometimes cuts out when pulling away and hard to start even when bumping.it also revs very high when tikkin over.in the dry it runs great & starts ok.i think personally its electrical possibly how the coils are positioned (fitted to outer casing).any help much appreciated.cheers brian