2003-2005 Kawasaki JetSki Ultra-150 Factory Service Manual, Page 37Get this manual
2-8 PERIODIC MAINTENANCE Periodic Maintenance Procedure
High Altitude Performance Adjustment
The normal carburetor settings are best for sea levelIf the watercraft is used at the higher elevations, the lower atmospheric pressure makes the carburetions richerTo obtain the proper carburetor setting at higher elevations, change the main and slow jets according to the tableAltitude Main jetPNoPilot jet(slow jet) PNoSea Level 000 000 000 (0 (3 300 300 ft) STD 600 ft STD) #165 920633720 #48 16158-3724 #165 920633720 #48 16158-3724 000 000 (6 000 800 ft STD #155 920633723 #45 16158-3725