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I have an 89 Yamaha 70hp etlf. I just had the #2 cylinder bored out and I put the oversized piston and rings on. Compression is back up to 119-125 in all cylinders (125 being the bored out cylinder). The engine seems to run great except for a faint knock that I can hear at lower rpm's. I can't...
I am trying to remove the powerhead from my 89 yamaha 70hp motor and am having trouble getting it to seperate from the base. I have removed the lower unit so its not stuck on that. I have removed the six bolts on the sides and 2 in the front. I have tried lifting it out with the engine hanger...
I have a Yamaha 89 70hp outboard. I was out cruising on the water and my engine died on me. It started back up fine, got it back up on plane and 10 seconds later it died again. I was able to run it a little over idle speed to get it back to the launch, but it was running real rough. I had a hard...
I am having an issue with the alarm going off with my 89 Yamaha 70hp and have just replaced the water pump which was missing a blade. I would also like to replace the thermostat assuming there is one on this engine to rule that out as well. The impeller looked like the original so im assuming...
I do not have an owners manual for my 89 yamaha 70hp outboard, but I would like to know if anyone knows whether or not this motor has a thermostat and if so where is it located? I am troubleshooting an overheat alarm and had just replaced the water pump (which was missing a blade) and would...
