September 30th, 2016, 05:29 AM
Joined: Mar 2009
I Ride: KTM 300 XC
I haven't been following this, but the doc that I've made was in reference of the numbers of the die cast mould, not the number punched in to each engine.
If you can find some logic on those you could make a doc explaining those.
In regard of the casings, I don't think there are any differences between 97 and 98. Even with the bike I think they only changed suspension, the rest is the same.