Search results

  1. S

    Stator?

    I have a Mercury 150 EFI 2 stroke. The tach stopped working prompting me to look at the rectifiers. They were both shot. I replaced both rectifiers and ran the motor at an idle. My multimeter confirmed the voltage at the battery increased when the motor was running and the tach was working...
  2. S

    Yamaha temp gauge

    I have a 2006 Yamaha 9.9 four stroke. The layout of my boat does not permit me to see the motor from the helm. I had a plastic bag or kelp cover the water intake while trolling and the motor heated up, it was undetected until I heard the motor reaction to running hot. To avoid the motor ever...
  3. S

    Yamaha Starter draw

    I have a yamaha OX66 200hp two stroke. I have just rewired the boat. I upgraded all of the wiring. I have two batteries both batteries have a 4 gauge leads to the battery switch and 4 gauge wire from the switch to the outboard. The marine shop suggested I add a fuse at each battery. I added...
  4. S

    Yamaha outboard wirring question

    I have a 2005 Yamaha OX66 200HP and was looking for a wiring tip. The Yellow wire from 703 control box has 12 volts when the key is on but when you turn the key off the yellow wire still has 5 ish volts and holds. When I unplug the pink wire off the signal buzzer and re test the yellow wire has...
  5. S

    Merc 25hp EFI - Water Blockage

    (Model F25ELPT, serial 0r374682) With thermostat cover & thermostat removed as well as lower unit off I can't get water to flow up the water tube. One of the ports under the thermostat cover seems to be blocked as well, I suspect a blockage around the top of the water pipe causing the issue...
  6. S

    94 Yamaha 150hp oil injection

    I purchased a 1994 Yamaha 150TXRS, Good compression, good seals, nice shape. Before I ran it, I noticed the link rod for the oil injection was missing, upon further inspection I found that the drive gear for the oil pump was also removed. I ran the motor using mixed fuel, runs great. I wish...
  7. S

    Force Timing Advance

    I purchased a used 1996 120hp force outboard. After 6 months of use It started running very rough. I found it to be a blown head gasket. After replacing the head gasket it ran perfect except for the fact that the idle was now increased to 1100 rpm. After ruling out control linkage and carb...
  8. S

    Idle adjustment

    I have a 1996 120hp Force outboard. Ran perfect till last week then started running rough so I flushed the fuel, changed the fuel filter and cleaned the carbs. Upon further inspection a bad head gasket was my issue. I replaced the head gasket and it fixed my issue however the idle for some...
  9. S

    Yamaha Oil Injection

    I just purchased a 1994 150hp Yamaha Saltwater Series outboard. ($1800 including controls) (Model TXRS) 120 compression across all 6 cylinders, lower unit seals good, good spark, very clean. All and all seems to be a good motor. I have not run the the motor as it was not an option at the...
  10. S

    1977 Thunderbolt 850 compatibility with New merc control box

    (Motor: Year 1977 , Make Merc, model 1850527) (Control box: Year 2007ish Mercury side mount) I have been reading posts and looking at wiring diagrams from the 1977 85hp merc and the new merc control box. Looks like it should work however the old motor does not have the 4 gauge 12v lead running...
  11. S

    Merc control box

    I have a friend with a new mercury control box and cables and he is looking to use it on an older merc motor late 70"s early 80's. On my Yamaha I had to make adjustments to the box in regards to the shifting being pull vs push. Could this be an issue on my friends merc. I will explain to him...
  12. S

    Is all Gauge Wire the same?

    I need to run heavier wire in my 21 ft boat from the batteries at the back to the panel at the front. As I have accumulated more electronics the 12 gauge wire I have now has too much drop in voltage under load. I am planning to run 4 gauge wire. I priced it at the marine shop for $3.75 a...
  13. S

    9.9 Yamaha Water Blockage

    Model: FT9.9ELD My cooling issue investigation is unfolding as follows; No water was coming out the pee hose so I replaced the impeller (is was still in good shape) confirmed there was no blockage between the intake and the pump, the water tube was clear. There was a very small piece of hard...
  14. S

    Yamaha 9.9 broken water pump bolts

    Yamaha Model FT9.9ELD (1990) I am attempting to replace the water pump impeller and oil seals under the pump. This motor has not been serviced for a long time and the water pump assembly bolts were very seized from salt build up. I was able to work 2 of them out by a series on small movements...
  15. S

    9.9 yamaha case corrosion?

    I came across this thread while doing some research in order to help me make an educated decision on the course of action on my Yamaha 9.9 that has the same issues as described above. http://forums.iboats.com/yamaha-suzuki-outboards/9-9-yamaha-case-corrosion-468168.html I am tiring to decide...
  16. S

    Yamaha OX66 200hp Temp Gauge

    I have a OX66 200hp Yamaha. I have a basic Yamaha multi-function Tac that came stock with this motor. Just prior to re powering, I installed new Faria gauges in the boat. I hooked up the water pressure gauge and now want to use my temp gauge but can't seem to figure out where to attach the...
  17. S

    Water Pressure Gauge

    I have a Yamaha ox66 200hp outboard. I am installing a water pressure gauge but I cant find the spot on the motor to hook up to the block. I have a brass plug with a nipple (Yamaha stock part) but can't find where it should go? Any tips would be helpful.
  18. S

    Mercury control box

    Someone who has a merc 850 thunderbolt is interested in purchasing my mercury control box. My box is about 3 years old. Would it work on his older merc outboard ? Thanks for any info
  19. S

    Battery Draw

    On my boat to run my GPS system I have a netbook and a external monitor that are being powered at 110 volts by an inverter from my 12 volts batteries. The cord from the inverter to the external monitor converts the 110V AC back to 12v DC. Would it save battery life bypass the inverter, and...
  20. S

    Fuel Consumption

    I have a 1996 Yamaha 200hp OX66 with a 19p stainless prop on a 1989 21ft Bayliner Trophy. What is the most Fuel efficient RPM for running long distances? The price of fuel this season is making me think about this a bit. Thanks for any info.
Top