Recently my LET has been Idling funnily, its fine sometimes but othertimes I'll let off the throttle and it'll drop to 1000 rpm, up to 2000 rpm and rev between the two untill gradually settling down to @ 1100 rpm. I've given the ICV a quick clean (sortof) by pulling off the top pipe and spraying WD down the pipe in the vain hope that it makes everything hunky dory by removing gunk and lubing the ICV. I dont really fancy removing the ****** as it looks quite tight in there!
Is there anything else I should check, air leaks etc?
Cheers for any help
Edit: hmm the swear filter blanks out B u g g e r, I didn't think this was a "Naughty" swear word