Camshafts *should* fit, *I think* the change came with 1000DS in ‘03.
IE returned to the larger size valves of the earlier 900, I’m not sure about valve/piston clearances as the IE pistons came from a different manufacturer, although compression ratio was the same.
(timings @1mm lift)
carb 900 to’96
In 20°btdc-60°atdc
Ex 58°bbdc-20°atdc
lift: In 11.6mm, Ex 10.56
900IE ‘01-‘02
In 25°btdc-75°atdc
Ex 66°bbdc-28°atdc
lift: In 11.8mm, Ex 14.4mm
oil pump:
posts #6-9
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