hi um i was working on my dads 110 3wheeler because he said the valves needed to be adjusted and when i adjusted them with the gap gauge i didnt titen the nut enough and when i started the bike and rode it i heard a ticking and i took the vavle cap off and it was the valve vibrating because the nut come off and i cant find it so i took the valve cover off of the bike and tried with a magnet pen that was pretty big but couldnt find the nut and i called to stores and they said the thread is to fine for any nut they have so can you tell me where the nut could have gone and where to look mayb if i try magnetising a screwdriver or somethin please anbd thank you

 

Hey all, kid came to me and told me what happened. The nut had fallen through and down to the exhaust valve.

 

guess that to mean you were able to retrieve the nut and reinstall it on rocker arm and TIGHTEN it?? lol