GOOD NEWS. . . . The PICTURE UPLOAD FUNCTION IS WORKING !!! The tech folks at the parent company have been able to remedy the issue. You can upload pictures once again. Thank you for your patience.
Have another question. Center intake manifold, looks broken, but when I look for replacement they are the same. What is that. Factory? Same failure? Just a question. Weird looking to me.
Wow! That is a lot of incredibly useful information for this project and future ones. Sorry I took so long to get back, been busy with life, family and breaking down this Yamaha 2000 C50TLRY. I have more pictures. Hard to tell if center is not original. It’s mashed to death. Side came apart...
That is the same logic that lead me to straight gas theory. Center cylinder will heat quicker being that it has no free wall like the top and bottom. Any water pump issue would not be center. Water cooling the upper and lower while not being able to control center temp. I’m going into the...
Number 2 carb running lean from some carb obstruction definitely makes sense. Cylinder walls are scored on #2, All cylinders are sleeved. New sleeve, New piston, new rings all around while open. These Yamaha motors hold their value. This motor running properly is a $3500 motor all day long...
Thank you very much for the response, I believe this motor may have been run with straight gas. Is detonation damage a system of something like that do you think? I will be opening the fuel filter to continue my investigation. Thanks again
I acquired a 2000 Yamaha 50HP C50TLRY with a bad center cylinder. Any ideas on how a motor that looks very well taken care of can destroy the center cylinder? I have a theory but would like to hear from some folks. Thanks for your time.
Did a compression test on my Johnson 1988 48HP SPL J48ESLCCC , 145 Upper cylinder and 125 lower cylinder.. Good/Bad? I was hoping to have them a little closer together. Its is right at the 20psi tolerance difference. Any knowledge would be helpful. I have fuel spitting from the #36 low idle...
I just bought this motor. Starts and runs, rough at times, RPMs change when the spitting starts. 1988 Johnson 48 SPL spitting fuel out of #36 Idle port also spitting out of bottom of tube in the throat that attaches to the float bowl. Upper carb only. Also motor pumps water really well out of...
