Just seen it added it's only on for £200 bin!
(Needs looking at as 3rd gear iffy it says, but who is up for seeing if they can get it to fit!)

http://cgi.ebay.co.uk/Honda-SP1-RC51-En ... 2c573839b7

It isnt very clear whats been done to the engine but if it has got some HRC goodies it could be worth it. Id pull it apart first and give it a once over then again you could just strip it and fit the goodies to yours. Might be worth lurking about on a SP1 forum to see if its worth fitting what evers inside, you may need a HRC CDI to make it worth while

If it were me and it did have HRC goodies inside id buy it

You'd have to put that akra system back on tho

It's a standerd motor,He has listed it in a way that it draws attention.

Still.. tempting for a go-kart.

I dont know how you could get round the swingarm pivot engine mount that vtr engines have. i did wonder if it would be cut off able. but without a engine case to play with we wont know.
Cheers
Ian