500 puzzle

Thanks Andy!
I have a new chain and I sourced 2 other new ones.

@Vince
The tank is so far just a shell, but I might get rid of the stering lock anyway. As for the swing arm angle 11 degrees is to aim for on modern race bikes.
 
Well, time flies and I never seem to finnish of my 500 race bike so I bought another one (the one below). I thought it was quite race ready but it needs a lot of work so now I plan to do both paralell during (or start..)this winter.
None of them have oil cooler and I think thats s good upgrade. Anyone have drawings how it shold be done or where to send two cases (or heads, seen both variants) to havt it done?
The one I bought recently have hc pistons, larger valves and formula cams. Might as well do the cranc on this one as well. Stig is no longer in business so i need to find another sorce, prefably within EU.

Otherwise it have been a great deal of classic racing me and my son race in the nordic classic racing cup. We ride a 748 each and Thias (son) Rides a Krämer 690 in super mono (rides with the nordic classic serie) and I ride also the TT1 replica (in the photo) that I build a couple of years ago.
Takes a lot of time (and money) since Thias is a student for now and I pay and fixes the bikes...


2025-08-04 22.02.06.jpg_MG_2748.jpg
 
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