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I bought my 1985 JS550 back in 2007 and I have been riding it a lot. Its been virtually trouble free ever since I bought it. This past year the body has been getting kinda rough, and I have been craving more power.
There is a jet ski forum that I frequent, and the 550/650 swap is getting very popular over there, so I decided to partake on that journey. Heres what I started with, my 80's painted js550 with a milled head:
The bottom was one of the main problems:
The engine:
There is a jet ski forum that I frequent, and the 550/650 swap is getting very popular over there, so I decided to partake on that journey. Heres what I started with, my 80's painted js550 with a milled head:
The bottom was one of the main problems:
The engine: