Search results

  1. C

    Cleaning gas tank?

    Your fuel tank is probably made of aluminum, if original to that year boat. If you boat is fresh water, it is likely in good shape without any corrosion or rust. Steel fuel tanks were usually not used after the 70's. Plastic tanks started being used in the 90's.
  2. C

    Bed Liner Waterproofing

    Gee, that would be way down my list, behind polyurethane resin, spar varnish, epoxy paint etc. Why can you not glass it? You can always staple some fiberglass cloth to the underside of the deck, saturate it with resin and lay it over the stringers. Be sure to screw thru the decking into the...
  3. C

    Hydrofoil/Whale Tail Good or Bad

    They are supposed to help the boat plane. They often drag at planning speed. Tri-hull boats plane pretty easily, compared to Vee hulls. What length boat and HP engine?
  4. C

    1989 Bayliner Capri Hard Steering

    Marc, Mercury Marine makes a special lube just for steering cables and prop shafts. It is called "Special Lube 101". 1 tube last for years. That is what I would recommend, if in the business of recommending.
  5. C

    Replacing trim motor

    I never did support the motor in any significant way. I did stick a board under the center of the motor, but my engine is bolted on above the transom. if yours sits on the transom, it is probably supported adequately.
  6. C

    1987 115 2-stroke in-line six surging at higher RPM?

    If the fuel pump cannot supply the required fuel flow for high speed, the speed will ocellate. It could be something as simple as a stuck one way valve in the fuel pump, or a clogged fuel screen.
  7. C

    Disconnecting the fuel line, let engine burn gas ?

    Yes, my 1958 Fat-Fifty was roller and ball bearing. I even found a piece of a clam shell in the lower main ball bearing. Didn't see to affect it though. I think the smaller OBs were sleeve main bearing until 1963 or 1964. Not sure when the big twins changed over.
  8. C

    1989 Bayliner Capri Hard Steering

    Clean and grease the steering rod at the motor. That is the first place it will get stiff. Use mineral spirits to clean it up real well, and marine grease to lube it up. Pulling the steering cable can help, but is not really necessary. Just do enough iterations of clean until you get all...
  9. C

    Replacing trim motor

    You probably need to remove one of the trim brackets to get to that rear screw. That is much better then lifting the motor. So unbolt the PTT cylinders from the trim bracket (3 bolts?). Remove the large nut on the tilt tube and the two transom bolts, and slide the transom bracket onto the...
  10. C

    1983 200hp Black max overheating at/over 4000rpm

    That motor has thermostats and a poppit valve. Thermostats cool the motor at low speed and the poppit opens to cool the motor at high speed. I would recommend you replace the thermostats, so the system is configured properly. At about 2000 PM the poppit valve should open. You might inspect...
  11. C

    Disconnecting the fuel line, let engine burn gas ?

    When Evinrude went to 50::1 gas-oil ration, it was because they converted their sleeve bearings to roller and needle bearings. Sleeve bearings need more oil in the mix to rotate properly. By 1964 all Johnnyrude models had been converted.
  12. C

    Which are bilge/drain plugs

    The ones with the black plastic perimeters are not the bilge drain. The one in the very bottom with a painted perimeter is likely the bilge drain plug. You should see it is open on the inside of the bilge. The painted hole higher up is the splashwell drain. It is above the waterline and...
  13. C

    98 xr6 150 backfire issue.

    Sounds more like a miss, vs a backfire. if your timing is correct, maybe the carbs idle mixtures are a bit lean? Lean mixture would give a good idle, but not have enough fuel to accelerate smoothly. 1800 RPM is a bit higher than normal for main jets to engage. Normally I thought that was...
  14. C

    Disconnecting the fuel line, let engine burn gas ?

    Two cycle engines provide gasoline and oil to each cylinder. The concern is that if you disconnect the fuel supply to a multi carb, multi cylinder 2 cycle engine, some carbs will run out of fuel sooner, and the engine will continue to run without any oil to some cylinders. Stabilize the fuel...
  15. C

    Oil pressure gauge wiring

    Purple is ign power to gauges. Brown/white is trim gauge sender. Tan/blue is overheat horn. Not sure what tan/black and tan/white wires are. Tan is generally used for alarm wires. See if you can trace their origins under the motor cowling. Oil pressure alarms to the ECU are usually...
  16. C

    Trim stopped working

    I do not remember if the Alpha 1 PTT units had circuit breakers. You need to look it over. They might have had a large fuse. It would look sorta like the old fashioned main breaker in your parent's house's fuse box. Two copper flat connectors and a square heavy fuse between them. use some...
  17. C

    Mercury Black Max XR2 150

    Depending on the year, that motor has a single 40A voltage regulator, twin 20Amp voltage regulators, or a rectifier and unregulated charging system. A 1987 Merc 150XR2 looks to have the rectifier. Newer motors have the VRs. Not sure of the charging capacity of the '87, but expect to be no...
  18. C

    Trim stopped working

    Some of those PTT systems have circuit breakers. Some of the PTT motors themselves have circuit breakers inside them. I would recommend you jumper the PTT motor directly. Do you have a 3 wire (green, black, blue) or a 2 wire (green, blue) PTT motor?
  19. C

    Using Aluminum plate for a transom instead of wood

    My fiberglass speedboat has a 3/8" piece of aluminum bolted to the wooden cored transom. It gives added strength. However, if that was the only transom, it might bend under stress. The plywood core of the transom is better for shock absorption. Not sure what thickness of plate you would...
  20. C

    Trim tilt

    The trim limit switch is on the pivot point of the outdrive. Corrosion keeps them from operating working properly. Take it apart and clean it up, or use the trailer button.
Top