I've recently got a DT3 imported from USA, which I'm starting to restore. I've stripped the engine and have discovered that the gear selector detent plunger & spring are missing. There is some small scraps of metal in the gearbox but nothing else looks damaged. I'm in the UK & have looked for the parts but they don't seem to be available. Does anyone know if any later/other model parts would work? Thanks

 from near Salisbury, Tim.

There is one listing for each currently on fleabay - see links below.

Yamaha XS2 XS650 TX750 DT1 RT1 YR1 YR3 YA6 TR2 cam stopper pin 137 18547 00 | eBay

YAMAHA DT3 RT2 RT3 1972/1973 GENUINE NOS GEAR SHIFTER SPRING - # 90501-10066 | eBay

Thanks for that... I've bought them.

Do you know if there is an issue with these breaking?

Not breaking as such, but if there is water ingress on a bike abandoned outside, say, then the spring can rust (it happened on my US import RD350). Saying that, there will be other signs of the water ingress as well.

What is more usual is for owners to mistake the detent holding bolt as the oil sump drain bolt and the spring and stopper get chucked out with the old oil! 

Blimey... you're probably right there. Yikes!!!

Thanks for your help.

I'm not sure how many of the old posts you've read, Tim, but I would recommend fitting a 6v regulator if you're sticking with original electrics. Post if you need more info.

I will be using this site for the many questions that will, no doubt arise.

Greetings from Tennessee 
  Change your brake shoes before you ride your bike for safety reasons 

"Change your brake shoes before you ride your bike for safety reasons." 

+1

They are still available from Yamaha - check CMSNL for the up to date part numbers.

If you need them, KDI on this site sell repro cables (amongst other items) and forum moderator/member DEET sells top notch replacement silver/grey wire sleeving.

Just a thought. Did you drain the oil yourself out 'that' bung instead of the middle one, as the missing parts could be in 'your' oil tray. Just saying.