MJ's Blown Piston

[macojoe]

Ok I want to thank all for your help!!

1. I do ot think it was a oil issue cause I was using oil, the level was lower then when I started.

Yamaha does ot mix oil with gas it is a derict oil injection.

2. Carbs?? If the middle carb runs the middle cylinders then why is one at 0 and one 120 ??

3 *yes it over heated big time!! *But why?? *Water was pissing, and the thermostas check out ok in a pot of water boiling at 180*

So if not oil, carb, or water then what?? *I still think there was a internal break down of some kind??

So I agree, that it was the ring!!

I also think that fixing 1 of 6 cyl will be nothing more then problems with the remaing 6, on a 18 year old motor.
I would only fix if I was going to sell it!

If I had got the parts motor I might have tryed over the winter to build it and then sell in the spring??

But since it that did ot work out I will sell the parts and go with BR motor!