That tri moto is deffinatly a 80-81 model. The 82-85 models have a few differences to be aware of when trying to buy parts. To name a few off the top of my head, the frames,airbox design, rear axle, cylinder and reeds, clutch components, gas tank plastic and decals are all different between the two generations. Nice bike though, and look forward to seeing her all fixed up! It looks like you are doing a great job so far. Keep up the great work and interesting pics!
THE 80's RAGE! Currently owns:
81, 85 Yamaha Tri Moto 125
83 Yamaha Tri Moto 200 x2
82,83 Yamaha Tri Moto 175 project
85 Yamaha Tri Z 250
84 Kawasaki Tecate 250
84 Honda ATC 70
85 Honda ATC 350X
84 Honda ATC 250R
(2) 84 Honda ATC 200x
82, 83 Honda ATC 185s
81 ATC 200
Lots of other parts and bikes