"I have twin Yamaha 225 4 stro
"I have twin Yamaha 225 4 strokes with 230 hours. About 50 hours ago the starboard engine started to flush less and less through the hose connection to the point where the water now flows less than 20 % of what the port engine does when being flushed in the same condition.
-I removed the lower engine anode and turned the hose on; on the starboard engine the water never reached the level of the anode, on the port engine it quickly overflowed.
-Neither engine gives signs of over heating.
- When under way, water flows well from the pee hole in a similar way on both engines.
- Two Yamaha dealers told me not to worry as long as the engine doesn’t over heat; it’s not worth the trouble to figure what is wrong and they have no idea what it could be.
- The Yamaha motors customer assistance basically said the same. He had never heard of this problem.
Has any one had a similar experience? How can I make sure the engine is being properly cooled, (don’t care too much to have a over-heating incident some where offshore or damage the engine).
I do have a infra red thermometer which I can point towards a heat source and will try to find any hot spots that way . Any other suggestions?
Thanks
Frank"
"I have twin Yamaha 225 4 strokes with 230 hours. About 50 hours ago the starboard engine started to flush less and less through the hose connection to the point where the water now flows less than 20 % of what the port engine does when being flushed in the same condition.
-I removed the lower engine anode and turned the hose on; on the starboard engine the water never reached the level of the anode, on the port engine it quickly overflowed.
-Neither engine gives signs of over heating.
- When under way, water flows well from the pee hole in a similar way on both engines.
- Two Yamaha dealers told me not to worry as long as the engine doesn’t over heat; it’s not worth the trouble to figure what is wrong and they have no idea what it could be.
- The Yamaha motors customer assistance basically said the same. He had never heard of this problem.
Has any one had a similar experience? How can I make sure the engine is being properly cooled, (don’t care too much to have a over-heating incident some where offshore or damage the engine).
I do have a infra red thermometer which I can point towards a heat source and will try to find any hot spots that way . Any other suggestions?
Thanks
Frank"