If you look good at the bikes of Nicoll and Malin or Lilles you see two different cover.
Nicoll's is just like a stock cover only 2 pieces, and those who were put in a parameter frame looks more like a 250 cover.
Johan Boonen had Factory engines as well, and his cover looks almost "self made". Look at the tube were cooland from the cylinder to the pump is.
And Thorpe was not a fan of the new age frame and rode later in the gp his old style frame. Maybe thats wy Kawasaki didn't put it in production.
Dutchie
yes... they have taken thorpe with a lot of money away from honda factory gp team. but thorpe was not realy happy with the Kawasakis. He then went back to honda in 91.
the different water pumps have to do with the exhaust laying. only at the 90/91 factory bike the other water pump is necessary. or can be built at all af / sf conversions to get to the cooling hose out of the way and get the pipe as close as possible to the cylinder.
johan Boonen and daryl king were later also relatively successful with these bikes in gp.
But my question remains. why dont came this bike or the 2 peace clutch cover never to production? these parts were a few years for the factory team. why not also in a production update?
greetings to you from germany to netherlands