The best place to look for parts is going to be e-Bay. There are pretty regular listings if you search e-Bay motors for "g4", or "g5". I believe most parts are interchangeable between the G4´s and the G5´s (which is what I have). In fact there´s currently a complete throttle assembly listed.
We invite you to introduce yourself by a few sentences if you are new to
this discussion group. Enter your e-mail to join the forum and get notifcations on new messages. Or post your question,
answer or comment as a guest. We have just improved this discussion forum and expect the number of users to increase.
More 1972 Kawasaki 100 G4TR information
Our discussion groups are intended for short messages. We also welcome more extensive motorcycle reviews.
Bikez also recommends that you check out the technical
data and the riders' rating for the 72 Kawasaki 100 G4TR.
You can also rate it yourself. Use our efficient motorcycle
classifieds to sell or
this bike. Your motorbike gets a high quality presentation. Ads are free.