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Overheating
First off: 1991 V4 115 HP Yamaha 115TJRP
I had taken this boat out all day one day and after about 5-6 Hours of running all different speeds including 3/4 - full throttle for about 10-15 minutes and it never overheated. I had to back off to idle speed through a zone and when I could throttle back up, in about 60 sec the alarm went off. I let it sit for about 5 minutes and had to restart it to get back home which was 8-10 miles away and thunderstorms were all around. I ran it at about 3/4 throttle most of the way back and it never overheated again. About 1 week later, I had it out for 13 hours drift fishing and *****ing and running at full speed a few time. NO overheat all night. Then about 3 days later I ran it at Idle for about 5 minute and cranked her up to about 3/4 throttle and no more than 30 second and the alarm goes off . I let it sit for about 10 minutes and refired it back up. It was fine the rest of the night but I never got over 1/2 throttle. I decided it was time to change the water pump, popet valve, and thermostats since it had been a year anyways. I also flush it completely out (except the heads).
Well after changing everything I notice the Pee-Stream is a lot weaker than before. I took it on the water and opened it up for about 3-4 minutes and BUZZZZZZ ...the alarm goes off. I have taken this thing apart 10 times now and I have no idea what the #$@#^(&$%# is going on. I fix it and it's worse??? I need some suggestion here. I wouldn't think the water jackets would have anything to do with the Pee-Stream.
I had taken this boat out all day one day and after about 5-6 Hours of running all different speeds including 3/4 - full throttle for about 10-15 minutes and it never overheated. I had to back off to idle speed through a zone and when I could throttle back up, in about 60 sec the alarm went off. I let it sit for about 5 minutes and had to restart it to get back home which was 8-10 miles away and thunderstorms were all around. I ran it at about 3/4 throttle most of the way back and it never overheated again. About 1 week later, I had it out for 13 hours drift fishing and *****ing and running at full speed a few time. NO overheat all night. Then about 3 days later I ran it at Idle for about 5 minute and cranked her up to about 3/4 throttle and no more than 30 second and the alarm goes off . I let it sit for about 10 minutes and refired it back up. It was fine the rest of the night but I never got over 1/2 throttle. I decided it was time to change the water pump, popet valve, and thermostats since it had been a year anyways. I also flush it completely out (except the heads).
Well after changing everything I notice the Pee-Stream is a lot weaker than before. I took it on the water and opened it up for about 3-4 minutes and BUZZZZZZ ...the alarm goes off. I have taken this thing apart 10 times now and I have no idea what the #$@#^(&$%# is going on. I fix it and it's worse??? I need some suggestion here. I wouldn't think the water jackets would have anything to do with the Pee-Stream.
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