Recognise a few names from the TRF forum, used to have a lovely little xr250 until some mouth breathing pond scum borrowed it from my garage..didnt want to spend too long without a 'laner, so grabbed a ttr that i saw parked up while on my work travels. Previous owner was about to stick it on evilbay, so saved him the trouble. Turns out that it needs a bit of fettling before it hits the lanes again..got the dreaded knock when the ignition is killed, which i assume is the sprag..? And now the starter is playing up, just a non-satisfying click coming from it...!
So i have a project on my hands.. No doubt i will have many many questions in the future..!!
Good Morning Mogwai (it's 12:59 AM here in Aussie land) and welcome to the forum :handshake
The clunk could most certainly be that the sprag clutch needs replacing, however, a few people have unnecessarily worried themselves. If it is not loud and more of a clicking sound, it's should be alright. If in doubt though, replacing is the best option rather than placing more wear on the pinion gear etc..
The stater issure could be due to a few things, the first one to check is the start switch IMO. More info on this HERE.
The other possible causes in order are-
Loose battery leads.
Bad earth.
Starter relay.
Starter motor brushes.
Wiring harness.
Armature came a drift from the housing (usually only with non-genuine motors).
If I have forgotten to add any possible causes, I'm sure someone will be along soon to add to it.
Good luck!
Jarrah
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2000 TT-R250M-
Spoiler
Ported & polished, 73mm bore, Wizeco piston, US header pipe, FMF Q4, #150 main jet, #52.5 pilot jet, throttle stop screw adjusted, larger snorkel, GYT-R air filter, NGK Iridium spark plug, 14/51 gearing, NOS +