2003-2005 Kawasaki JetSki Ultra-150 Factory Service Manual, Page 19Get this manual
1-14 GENERAL INFORMATION Technical Information-Engine 3Carburetor and Throttle Sensor
The JH1200-B1 has CDCV 40 carburetors with Throttle Sensor [A]The CDCV 40 carburetors deliver sharp throttle response and smooth accelerationThrottle sensor ensures ideal ignition timing at all throttle openings, delivering improved response, harder acceleration and improved power feel at all rpmThe throttle sensor signal goes to the igniterThe igniter computes the optimum ignition timing(K-TRIC system)