Cylinder Head - Identification numbers have altered Reason ( A new company is making these parts - no modification other than new numbers)
Needle stamped "K98" - for the improved driveability of the engine.
Cylinder [1] - Position of Rotax logo has changed from being parallel to fuel flow to being right angles to fuel flow.
Cylinder [2] -New Identification code - to identify cylinders made from the new tooling with the reduced variation -!??
Comment ....
New cylinders with reduced variation ?? reduced from what ?? new code to identify them ?? does that mean better performance from new cylinders - yes - Please x-plane !!??!