1995-1997 Kawasaki 750ZXi-900ZXi Jet Ski Repair Manual., Page 43Get this manual
2-12 FUEL SYSTEM
CarburetorFuel Pump
Idle Speed Adjustment
The normal idle speed setting is the lowest at which the watercraft will run reliable while still producing enough thrust to circle back to the rider after spillTur the idle adjusting screw as required to reach thts setting
Idle Speed JH900A:
1,250 rpm (In water) 1,800 +I00 rpm (out of water) 1,250 I0 rpm (in water) 1,700 10 rpm (out of water)
Mixture Screw Adjustment
Since every carburetor is adjusted individually the factory using at flow meter, specific mixture screw settings cannot be givenAfter over each mixture screw head with the adjustment, cap [A] is installed1 point straight down to identify proper mixture screw settings each for untilDO NOT CHANGE THESE SETTINGSIf the carburetor is tampered with and these settings cannot be relocated, set the mixture screws to the following guide line Pulout mixture screw calpsthe set each screw, turn it in until seats lightly, and then back it out the specified number of turns