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  1. N

    Lose spark around 3500rpm

    I have been having trouble all summer getting my 88Cris Craft 4.3L omc to run over 3500 rpms. I changed to electronic ignition,new plugs, wires, cap rotor, feul lines, feul filters ,set timing, cleaned and adjust carb, pretty much everything! It turns out that I started with a bad condenser and...
  2. N

    Lose spark around 3500rpm

    Does anyone have any thoughts about why my 1988 4.3L runs great from idle to about 3500rpm's . Then it starts missing & bogging. I have replaced the entire ignition system with a pertronix system, coil,cap, rotor,wires. New feul lines and filters, even ran a new hot wire from the coil to...
  3. N

    Lose spark above 4000rpm

    I have a 1988 Cris craft with a 4.3L & an omc drive. Boat runs great from idle to 3000 rpm then starts popping and studering . When you put a timing light on it you can watch the spark go away. Seems like the slower you rev it, the longer it takes to lose spark but never rev's above 4000. I used...
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