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  1. Scott Danforth

    Kill switch replacement

    you have the wrong switch if it has yellow and black wires
  2. Scott Danforth

    Swapping gearing in a stringer outboard

    much easier to simply weld on a new skeg on the 400 lower you are trying to mix stringer 400 and 800 bits.
  3. Scott Danforth

    Did I over prop?

    so get it repaired. its a simple job for any marina that does props and skegs. usually about a half hour job.
  4. Scott Danforth

    VP 280: exhaust water out helmet area

    you need the idle relief for the motor to be able to idle with a wet exhaust. just like if you back your car in the water and the exhaust is underneath. as some point the backpressure in the exhaust will stop the motor. same goes with boats. all marine motors with exhaust thru the drive have...
  5. Scott Danforth

    Any info on this motor would be helpful

    welcome aboard. you may have better luck on AOMCI.org finding information on that relic
  6. Scott Danforth

    sacrificial anode

    the motor will have an anode on it. unless you add it yourself, the pontoon itself wont have one as they are generally intended to be fresh water only.
  7. Scott Danforth

    Shift Control Too Wide

    whats wrong with your old controls cables can be changed wiring can be replaced
  8. Scott Danforth

    mercury 800 hot tall tale stream

    when you replaced the waterpump, did you replace the tube seal at the bottom of the power head?
  9. Scott Danforth

    Kill switch replacement

    there are two types of kill switches. Three if you count the combo switch those that are normally open and held closed with the lanyard. these are for I/O's and powered ignition. when you pull the lanyard, it breaks the connection. these are normally in the purple wire there are also the...
  10. Scott Danforth

    93 vp aq570 with 280 drive hydrolocked??

    pull the two hoses going to the manifolds, and tie them together. pull the hose coming from the crankshaft mounted raw water pump and put a nipple in it with a schroeder valve and a pressure gauge and pressurize to 15psi. should hold forever should only be one gasket on the manifold to riser...
  11. Scott Danforth

    Pre-start system check Whistle not heard now Crank / no start

    The wiring schematic is in the factory service manual http://publications.brunswick.com/ The thunderbolt ignition troubleshooting guide is in the stickies at the top of the forum
  12. Scott Danforth

    Did I over prop?

    Actually 40 years. The cobra drive was supposed to come out in 1983, bit was pushed back to 1984 (model year 1985) Most of the stringer parts are NLA
  13. Scott Danforth

    Info needed on LARGE Boats / Research Vessels (100ft+)

    My guess, start at 10-15 million for a vessel that is seaworthy but needs work
  14. Scott Danforth

    Did I over prop?

    You have that backwards. Every 1" of pitch you go up, your RPM goes down 200. Even with the correct 2:1 drive you don't have enough motor to spin the 21p prop However with a 1.65:1 drive you need about a 9-13 pitch which they do not make (smallest is 15p) So you need to get the correct...
  15. Scott Danforth

    2005 350 Mag dropping fuel pressure under load

    If your voltage feed to the ECM drops below 9volts yes. So find out where the bad connections are
  16. Scott Danforth

    Does anyone know the year ?

    Look up the serial number
  17. Scott Danforth

    4.3 cranks idles but dies.

    Did you test it before ordering parts?
  18. Scott Danforth

    XR 4 Hydrofoil

    No. It will lighten your wallet and put holes in your drive
  19. Scott Danforth

    2005 350 Mag dropping fuel pressure under load

    It's not the ECM. Check your wiring connections everywhere. Start at the battery and work your way to the helm cleaning every connection
  20. Scott Danforth

    93 vp aq570 with 280 drive hydrolocked??

    Either your gauge is way off or you have water or oil in top the pistons Plug the lines going to the exhaust manifolds to pressure test the block and heads You won't find oil in the water, you will find water in the oil with a cracked block
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