Boat Yamaha SBT engine low oil pressure?

[itsdgm]

I have had the same experience with sbt, everything but the mr1 is ok. I am on my 4th sbt mr1 engine in the same wavrunner and the low oil light just went on 10 hours past the break in. The first engine they sent blew a piston for no reason during about the first 20 hours - after a meticulous break in (looking back now it was probably low oil pressure). The second engine had 2 psi of oil pressure right out of the box. I found a complete NOS yamaha pump and tried it with no difference in pressure. The third engine was incorrect. The forth and current engine is now getting a low oil pressure alarm when I get off plane. I put the gauge in and I have 10 psi at idle cold, and the oil is glitter. I have been looking around on this issue and it seem many people are having low oil pressure and multiple other problems with sbt mr1 engines. The woman in the warranty department is a terrible person in my opinion. She fought me and blamed me at every step of the process and charged me freight every time except when it was the wrong engine. I know my way around an engine install, I am Yamaha certified and a Master Volvo Penta Gas Technician and I say with complete sincerity there needs to be a class action law suit against sbt knowingly selling bad engines and then trying to deny warranties with nonsense blaming and circular logic. I did everything by the book and used the correct oil - these engines do not hold up and the victims of the sbt mr1 scam need to be compensated. This was for my machine, if it was for a customer the bill for pulling and installing would of been insane.

Thanks for posting your experience. I’m sure that it will help many other boaters in the same situation.