Gauges
 

Hey all --- Anyone know why my RPM gage is working and not my MPH gage. Also, how do I get my gas gage to work.... Guy I bought the boat from said it has never worked since he pulled the tank and installed two fuel cells that run down each side.

I'm guessing:you: you have an outboard, if so the MPH runs from water pressure around the foot.

If you have two fuel tanks the you should have two seperate fuel guages. When he changed the tanks he may not have correctly hooked up the twin tanks correctly. To get them to indicate correctly you would need to run two guages or you could try to set up a system like in p-up trucks that have two tanks (switching valve that swap fuel lines and controls two sending units).

Its actually a I/O motor