Bangkok- Motorcycle repair shops and parts places around Khao Son area

Go up Samsen, there is plenty up there on the side streets.

You can also get a helmet and tools at any big C or Carrefour .

Thanks guys,

Now something tougher. Any ideas where I might find some Russian Minsk parts, cables, clutch plates, etc.? (Also in Bangkok.)

nowhere-as I told you before-this thing does not get sold here and noone rides it-hence no parts. Its all JPNese stuff here
in the next to chinatown area around CityHospital/Klong Tom market are a few 1000 local a-scrambled var/motocy repair shops-bus 47 crosses that area-try asking around there-its more make do and mend there