2004-2005 Kawasaki STX-15F Jet Ski Factory Service Manual., Page 376Get this manual
ELECTRICAL SYSTEM 14-61 Multifunction eter
Tachometer Inspection
o ne ty sa Cernas cstpteceif1e2dVinbtahtee"rDiandatyerFminncatlis ninInhse ectme "mann spl ion The revolutions per minute (rpm) equivalent to the input frequency is indicated in the oscillator [A] if the square wave (illustrated as shown) would be input into the terminal [7]JT1500-A2 model [B] JT1500-A1 model [C] The tachometer indicates approximately 000 rmin (rpm) in case the input frequency would be approximately 100 HzIf the tachometer does not work normally, replace the meter assembly