Does anyone know if someone works on these in Windsor Ontario area without costing an arm and a leg, fouling plugs every 30 min. for last while, started rattling and quit, took the head off, see bit of metal,probably the rings,now seized, can't get the thermo sensor out, wiggled the rubber out but shiny metal piece with 2 wires is stuck, someone told me I can change to 701 easily, but who will exchange a 650 for a 701? and would this mean rejetting carb, messing with impellar, would like to get a few more ponies out of it, pretty gutless with the 50 hp, but lots of fun for the kids with its spinning ability, thanks
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