Hey guys - My twin Yamaha's 250's seem to have an issue with turning off while running at higher RPM's. It's happened 2-3x. They've never done it at the same time, but it's happened to either engine with no warning - it will just quit.
Water / Fuel filters are new and clean. Hours - 350 each. Engines are meticulously cared for by Yamaha mechanic. Fuel is 87 octane from land gas station. I use Startron and RingFree at each fill.
Yesterday, motor ran great for 30 minute run, then sat for 4 hours moored, with motors tilted. After 4-5 hours, she started right up and then when accelerating, after 3-4 minutes, motor quit. After 10 minutes of trying to restart, she finally started and ran flawlessly again.
What do you think is going on ?
Thanks
Water / Fuel filters are new and clean. Hours - 350 each. Engines are meticulously cared for by Yamaha mechanic. Fuel is 87 octane from land gas station. I use Startron and RingFree at each fill.
Yesterday, motor ran great for 30 minute run, then sat for 4 hours moored, with motors tilted. After 4-5 hours, she started right up and then when accelerating, after 3-4 minutes, motor quit. After 10 minutes of trying to restart, she finally started and ran flawlessly again.
What do you think is going on ?
Thanks