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  1. P

    New 150hp Honda will not start but tries

    I double checked the boat wiring, plus simulated switch function by applying applicable jumpers on new motor connector. Get same results. Checking continuity from motor connector to control replays the signal that activates the starter solenoid is coming out of the ECU (my older motor the...
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    New 150hp Honda will not start but tries

    Thanks for the replies. Running to a dealer is the last desperate action since trailering a 25 Grady white requires some skill plus trailer needs work to get it road worthy. As for power I think that is good since I can crank it over when I apply power to solenoid with wire removed. I may have...
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    New 150hp Honda will not start but tries

    So new motor never run. Wired it up (had to buy adapter cable to compensate for old circular connector t the new square one) Turned on ignition switch heard the 2 beeps oil and water temp LED lit for a bit (however the MIL nor Battery lights can on at any time). Checked wires seem okay. Heard...
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    BF150 Overheating Solution

    Yes, finally can resume fishing and venturing from Chesapeake Bay into the Delaware River and even out into the Ocean. Thanks for the support.
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    BF150 Overheating Solution

    After 4 years of troubleshooting the overheating, I found the Solution...... Purchased a NEW Honda 150 Motor!!!!
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    BF150 Overheating Continues

    Sorry for not responding sooner. As for Pressure relief valve basically took spring portion off and sandwiched 2 washers with a pop rivet. Kept the rubber portion to maintain a seal. I did see a little improvement, not enough to write home about! As for forcing water into thermostat holes. The...
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    BF 150 Overheat **FIX**

    On theBF150 the Exhaust sensor at rear top side of exhaust manifold, near O2 Sensor. Cylinder Head and Cylinder Block on top of motor where big hose is connected. Case Temp sensor on starboard side of engine in area where the oil filter and oil sensor are located. I'll see if I see any water...
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    Twin BF150 and counter rotation

    I was trying to determine rotation of the 2 engines. I thought Counter rotation engine was on Starboard, but I was corrected that it is on the Port side engine with both props spinning outwards from center line of boat. If I was going to buy a new engine to on starboard, I needed to be sure...
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    Twin BF150 and counter rotation

    Outwards....
  10. P

    Mixing Honda 150Hp with Mercury 150hp

    Thanks for reply. I suppose if the newer engine puts more RPM on the prop, without compensating for it would make me go in circles I suppose.
  11. P

    Mixing Honda 150Hp with Mercury 150hp

    Is this okay to do mix engine brands, other than having a silver and black pair?
  12. P

    Twin BF150 and counter rotation

    Ok confirmed on engine data plate CW on Starboard and CCW on port.
  13. P

    BF150 Temperature Sensor Trip Points

    Bottom-line Tested both engines with Dr H and Thermocouples in exhaust water output and water output from combined Cylinder Head/Block. In around 155F reading from thermocouple and Dr H reports 158F Engine alarms and subsequently shuts down. So, both engines computers are responding the same...
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    BF150 Overheating Continues

    Bottom-line Tested both engines with Dr H and Thermocouples in exhaust water output and water output from combined Cylinder Head/Block. In around 155F reading from thermocouple and Dr H reports 158F Engine alarms and subsequently shuts down. So, both engines computers are responding the same...
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    Twin BF150 and counter rotation

    And I thought they were rotating inwards. So they are suppose to be outwards. So now I have to look at gear box for shaft groove. Which direction is best Inward or Outwards?
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    BF150 Overheating Continues

    Yes I do have the service manual. No I haven't tested the thermostats. I replaced them at least twice. They are definitely working on motor since I have clear hose on their output and can see the result when they open. I'm going to check good engine values and tripping points ( temp when ecm...
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    Engine Selection HELP

    Looking for advice on the following: Currently have 2 Honda 150hp engines (1) overheating (the other) runs okay. So do I invest into another 150hp (likely Mercury) to replace the Honda? OR Invest into say 300hp to replace both Honda's? Or 2 Mercury 150's. My concern with keeping the good...
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    Twin BF150 and counter rotation

    Do I have the rotations correct for the twins?
  19. P

    Twin BF150 and counter rotation

    To confirm the Port engine rotates clockwise while Starboard counterclockwise. So if I replace these 2 with a single 300hp which rotation do I want? I'm guessing standard CW.
  20. P

    BF150 Overheating Continues

    It is a Grady White Sailfish 1990. It was equipped with two honda 150's and worked good for several years These were new 2010 although I purchased boat in 2012. Only one of them overheat.
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