what parts are interchangeable...
are carbs the same on the two models
also the clutch, exhaust system, wiring loom...... etc
im rebuilding the bike for this year so any help would be great
cheers

Very little I am afraid,

Fuel pump is the same but not much else.

things that fit a 23 off a 29.
29 carbs are way different,u need to make an adapter for the airbox to fit.
however,they work better than the 23's
the 29 exhaust down pipes fit no probs...but will need some custom work done from the collector to the muffler...but thats ok,you can mount a hi rise system for summin diff
electrics no
starter yes
wheels yes
clutch plates unsure...but i may have some slipped in there by accident
starter cover proberly,but i havnt crashed on that side yet
thats fairly much what i have on mine
hope that helps
stimpy