[706wake27]

I purchased a 2003 Ranger Bass boat with a 2002 yamaha 225 outboard 3.1 V MAX
I need a manual on how the gauges work.
I understand how to operate the GAS AND TRIM. The question is the oil and temp symbols and what does the gauge do if the engine over heats and is low on oil? Also how can i check to make sure the oil and temp gauges are working?

[rodbolt]

who made the gauges and can ya post a picture?