A forum for owners of Yamaha TTR250 trail and enduro bikes!

Hi R

The digital speedo mount on the transmission output shaft is missing on the later models as you say.  If you wanted to run the digital speedo you would need to replace the shaft (part number10 in the fiche diagram) with one from the earlier gearbox such as found in this gearbox cluster.  However, the second-hand value of the complete working digital speedo is quite high and would easily cover the cost of a new after-market digital speedo that would work off a pick up fitted to the front wheel.

Another minor difference is that the oil breather pipe from the later engine is attached to the cam cover rather than the crankcases.

Brian