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  1. K

    no power in forward gear

    I have a 69 merc 650 65 hp thunderbolt. My motor runs great when i have it hooked up with a hose and adaptor but when i put the boat in a body of water it idles high and when i try to retard the distributor to the idle stop screw it kills the motor. As i'm trying to back off the throttle and...
  2. K

    New used Mercontrol box wanted

    I'm in need of old school mercontrol box that is a used part but in good working order. Or a good shift cam to rebuild my old box. It's for a 1969 mercury 650 65hp lightning ignition with a type three system according to the manual. Any leads to a shop or individual that has good parts or boxes...
  3. K

    69 merc 650 65hp limiter switch???

    Does a merc650 65hp have a switch that limits the output in forward gear? My motor engages forward gear and gets up to about 5 mph. No tach so don't know the rpm's but sounds low. I checked spark, compression, fuel, and all seems to be in working order. I can rev the engine high while in reverse...
  4. K

    throttle not opening up

    i have a 69 merc 650 lightning ignition. 65hp. The boat starts great but idles a little rough. Once it gets down to idling rpms it want to kick and kill the motor. But if i put it in gear before it dies and give it throttle it runs nice and smooth. But it won't go over 6mph. I checked my linkage...
  5. K

    Mercury 650 lightning 65 hp cover nut troubles

    I have a 1969 Mercuy 650 lighning 65 hp motor. Bought the boat last year and remodled the inside. Motor sat for ?????? god only knows how long. Fixed a few things on the motor such as wires, plugs, throttle linkage, ect. Motor runs great. Had it in a mess tub and all kinds of gunk came out of...
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