Re: 1970’s -1980’s Evin/John 4 hp piston /rod diameter specs

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May 15, 2016 at 9:21 pm #36595
frankr
Participant

    I think you have to be more specific. For instance STANDARD piston # 384651 fits the following:

    1R69,70
    2R71-78
    4RW, W, WF69
    4R, W70-71

    It would seem reasonable to think o.s. ones for those models would also work. But who’s a reasonable thinker?