p strong Chesapeake White SS 4 Tachometer w Systemcheck Indicator - 7 000 RPM Gas - Johnson Evinrude Outboard strong p p Perimeter-lighted White dial with stylish Blue and White graphics polished stainless steel bezel contoured white pointer and domed glass lens p p Tachometers work by counting pulses generated by the ignition system alternator tach signal generator or magnetic pickup sender The tach is hooked up to 12VDC Ground and one of the signal sources listed p p By selecting the right tach and setting the switch on the back to the correct position you let the tachometer know how many pulses are sent per each engine revolution p p These tachometers have a warning light system built into the dial that show off warning indicators when a fault is detected from the engine p p strong SystemCheck reg Warnings strong p ul li No Oil li li Engine Overheat li li Check Engine li li Low Oil li ul p 4 - Hole size 3 375 85mm p p strong Specifications strong p ul li Anti-scratch glass lens li li 12 VDC negative ground li li Can be adapted for 24 VDC systems li ul p Factory P N TC9881 p --- cis2 mmxtmJVt --- br
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