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.
Sell the one you have and go out and buy a 90. It's cheaper that way and less of a headache. Not a smarta** answer, I looked into BEFORE I purchased my 90.
They Share the same block, but a lot of the other parts are different. I believe the head and valve train are different, just like the 40/50hp models. Like MajBach said, its better to sell your current and buy a 90. The sum of the parts and labor would cost a substantial amount more than the difference in trade-in and purchase price of a 90.<br /><br />Nav
