[orenda635]

Originally Posted by Bob Byrnes

I think the "I" suffix describes a needle valve limiter on the engine in the trainer that is supposed to prevent newbies leaning the motor in too much.

They must have stolen that idea from Evolution. The limiters are a PITA.

I think the AX, FX, and FXi are six and one half a dozen of each other. I think the AX has what, 0.05 more horsepower? These letters are just marketing gimicks to make people think they're getting something new and improved.

[Cuffer22]

the FXI is from a netstar """ I """ is for Broken in!!!!!

it is the same as a O.S 46 FXknow diff!!!