jo172

own a 2006 sea doo gti 4 tech. usually have no problems with it, but today i filled the tank up with fuel, then took it out around the bay and within ten minutes the fuel gauge signalled that the fuel was low. on the dashboard the fuel light kept flashing and roughly every five minutes it would make a loud constant beep noise for a few seconds. Checked the tank and could clearly see it was full and there had been no leaks! Checked all the fuses and they seem to be working ok. When we put the lanyard in, the fuel pump turns itself on for two seconds so we know thats working ok, and now we have run out of ideas.Has anyone ever heard of this type of problem, or know how to solve it? any help to the matter would be muchly appreciated.

98yota

It sounds like the fuel sending unit is no good. The sending unit is located in the fuel tank. The sending unit is a simple riostate type sensor that uses a board with a painted conducter. It has a float with a needle that moves up and down along the painted conducter as the fuel level changes. The needle moves and changes the resistance which moves the needle of the fuel gauge or causes the low fuel alarm to sound. These sending units simply wear out. Make sure the sending unit has power. If ityou has power but doesn't work, its bad. You might be able to find one on ebay, but most likely its a dealer part. Hope this helps!

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1993 Yamaha WaveBlaster 701
1989 Yamaha WaveJammer 500