Differences between 85 and 86 Tri-Z? Need some help from the Tri-Z experts.

[200XMichigan]

Just picked up a 86 Tri-Z. The free manual on the site was printed in 84, and covers the 5 speed first gen Tri-Z. After doing a little research it looks like they changed more than just adding a gear to to 86. Different swing arm? and larger diameter front forks. Is the Tri-Z manual for the 85 going to be useful at all?

The main thing I need it for is the actual specs, i.e fork oil capacity, jet numbers, etc, Not the simple stuff like fixing brakes or bearings.

What was the VIN number that will tell me if one is an 85 or an 86?

Also I am hoping to get some parts from this Tri-Z if they will work, rear swing arm, shock, and forks? Were the 86 forks a lot better than the 85's? My uppers are pitted but other than that they are in good shape. My swing arm was welded to repair a crack, I would like to get these parts if they will work on my Tri-Z.

http://www.3wheelerworld.com/showthread.php?125932-TRI-Z-PART-OUT!!!-Bassani-exhaust-thermostat-eliminator-amp-MORE!!

[200XMichigan]

I looked at bikebandit.com to try to cross reference the part#'s on the swing arm. But they don't list the number for the swing arm anymore. But the bearings and seals are all different part numbers. However the pivot bolt and carrier are the same numbers. Leads me to believe the 85 swing arm will work on the 86 as long as I get the complete assembly. The sales brochure for the 86 Yamaha says it has an all new swing arm.

[MonroeMike]

http://www.3wheelerworld.com/showthread.php?126115-YTZ-250-Tri-Z-Service-Data

[200XMichigan]

Thanks Mike, that's awesome. Can't believe I didn't see that, it was right around the same time I picked up the Tri-Z.