Try this link.
these guys have a lot of parts.
http://www.stein-dinse.de/
If your location is outside Europe, it's maybe a little more difficult.

Ducbertus

hi, The symptoms you're discribing is your lose somewhere some fluid. I think that you already mentioned the most likely cause of leaky seal in the master cylinder. You can buy a repair kit and replace the complete piston, seal and spring. when you assembling the parts aply a coat of break grease. i...

The ST2 horizontal head still has the boss which holds the mechanical tachodrive. So, with a little bit of machining it must possible to mount the orginal tachodrive. The opposit is what antti suggested, to move to electrical tacho's. on http://www.wmd-instrumente.de/ you can find very nice combinat...

I spotted the engine on Ebay during my holyday in the USA. The company I work for has also a unit in the States. Sometimes we receive return-shipments from them. on one of these shipments my engine will come to the Netherlands I didn't see her running. but was able to inspect the engine throughly. A...

I bought a ST2 engine to build in my 907. payed just € 400 for it. This is cheaper as a set of drop-in pistons and cams. The ST2 is probably the best single spark engine. casings ST2 are same as the 907. problem is the electronics. talked about this with my dealer. I will change the wiring partly to...

probably the needles are stuck due to gumming. I had the same problem on a 888 SP3 which hadn't been running for a few years. I took out the injectors. connected them to a compressor (6 bar) equipped with lubricate unit. I put injector cleaner fluid in the bowl instead of oil. To open the needles I ...