2004 Triumph 170 CC and Yamaha 2004 F75TLRC

[mhumphr12]

I purchased a used 2004 Triumph 170 CC boat with a 2004 Yamaha F75TLRC. The boat has a mechanical oil Pressure Gauge (tube line from Motor to Dashboard gauge). The mechanical gauge does not read any oil pressure. However, the oil pressure like on the Yamaha does not blink indicating low oil pressure. I was told that this Yamaha was not designed for a mechanical oil pressure gauge. Does anyone one have the same boat and Yamaha that can confirm this? Thanks for your help

 

[Dave LeGear]

Possible that it might be a Water Pressure gauge? Is this a Brass fitting going into the top of the block by chance?

Can you get some pictures for us including the S/N off of the engine, which is usually found on the mount

Thanks!