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  1. Scott Danforth

    Upgrading Gen 5 VP V8-300 (300HP) to a V8-350 (350 HP)

    its a different fuel map you will need to provide your serial number to buy a new ECM, and they will flash it with the same program you have. a few years back, the marine industry clamped down on reflashing
  2. Scott Danforth

    Identifying 1976 Engine-is it a 302 or a 351?

    I read on the internet that I am a french model. bonjour these motors will spin to 4400 RPM and beyond that carb is not a marine carb and I would replace it or risk
  3. Scott Danforth

    Larson 310 Wind shield

    First, welcome aboard second, please be patient around a holiday weekend. most of us were burning fuel enjoying boating the windshield most likely broke because your cap is flexing. not from the frame. I would replace the windshield with the proper material...
  4. Scott Danforth

    Identifying 1976 Engine-is it a 302 or a 351?

    that is definitely an automotive carb. you can see the vac lines plugged
  5. Scott Danforth

    Ignition system common failures? 1994 7.4GL

    you will find green contacts in your cap and you will find arc tracing.
  6. Scott Danforth

    Merc 5.7 Keeps Shearing starter bolts

    huh? if you have a dead battery, you have less juice to make torque state of battery has nothing to do with breaking starter bolts
  7. Scott Danforth

    Did my new coil die after one hour use.

    in the stickies is the troubleshooting guide for the TBIV and TBV systems.
  8. Scott Danforth

    Decals and engine Badges

    look at AOMCI
  9. Scott Danforth

    What is this plug for?

    if one of the wires is grey, then its for the white light on top the bimini
  10. Scott Danforth

    Ignition system common failures? 1994 7.4GL

    bad cap and rotor
  11. Scott Danforth

    '99 Four Winns 4.3 - No Start / No Trim

    start by cleaning the batter connections, the cable connections at the motor block and starter, and all the connections up to the helm
  12. Scott Danforth

    Runs great on muffs but not in lake

    it could be running on 2 cylinders on the muffs and you wouldnt know it do you have points or electronic ignition? if points, make sure to set your dwell with a meter
  13. Scott Danforth

    I’m buying a Starcraft with the 110hp I/O.

    stop. this sounds like an old OMC stringer motor with the old 2.5 liter single throat carb If so, most parts are no-longer available. compression would be 140 psi new, if the boot is shot, what other things were neglected? since you dont want to pay too much for something that needs a...
  14. Scott Danforth

    Runs great on muffs but not in lake

    your mix screws are way too far out (rich). start at 1-1/4 to 1-1/2 turn out and bring your idle speed up
  15. Scott Danforth

    Fresh water cooled system radiator cap PSI

    depends on the system, the manufacturer and the motor
  16. Scott Danforth

    Merc 5.7 Keeps Shearing starter bolts

    Direct drive starters have a support bracket
  17. Scott Danforth

    Pontoon speed vs rpm

    pontoons are they hydrodynamic equivalent of a brick they take a whole lot more hp than you think the speed to RPM is never linear, its a 4th order polynomial curve youre fine, go boating
  18. Scott Danforth

    Signs of bad pour foam

    US composites are good. I personally use FGCI with expanding foam, best to make small pours. the warmer it is, the faster it kicks
  19. Scott Danforth

    Runs great on muffs but not in lake

    You IDLE speed is 650 RPM in water in gear. Out of water and in neutral, that is about 850rpm Where are the idle mix screws set?
  20. Scott Danforth

    Signs of bad pour foam

    I notice their website doesn't have a physical address listed and they are internet only
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