it's standard well apart from the wire splice and a few holes in the air box.
think the fuel line became blocked with crap and caused it to run lean on the rear cyclinder, on the plus side the front cylinder which was forever running rich had a lovely brown plug in it!!! sods law!

anyone got an mc18 r5k cylinder and head they'd like to swop for cash??
thought i'd ask before i have to send the broken ones away to be repaired.

And could any one recomend somewhere to send the cylinder and head???