1989 Yamaha 115

[Max70648]

I have an alarm that goes off after a few minutes of running or idoling. Boat will run great until alarm goes off then it bogs down. It's pissing water so I was thinking it was maybe the pump on oil reservoir. Should I keep fighting with that or convert to pre-mixing gas?

 

[aliboy]

Does it go off when you are running at say 4000rpm cruise or only at lower rpm's? I am not sure about an 1989 model, but later models had a common issue with the water pressure relief valve (poppet valve) getting dirty or stuck and causing a low rpm overheat that goes away when you get the rpm's up higher.

 

[Max70648]

Thanks buddy! I tore into it yester day and found my hose was kinked behind gas tank from the trip! I went ahead and disassembled every hose on the oil system and cleaned them out. I cleaned both filters and the only problem was the water catcher on the motor tank had to be cut off. I just made me a new one at work. After all the cleaning the pump was singing and doing great. Hope that was the issue!