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  1. joey nathan

    Shifter/Throttle Mechanism

    1975 70 HP Evinrude / 3 Cylinder - 3 Carburettor Engine So I tightened up/adjusted my throttle cable to address a high/erratic idle situation. And it's better now with idle closer to 800 RPM while in forward, but I think part of the problem is caused by the lever that advances and retards the...
  2. joey nathan

    Shift Interrupt

    Hi All Trying to help son-in-law with boat issue. '97 Mercruiser 3.0 LX 135HP and we need the part number for the little microswitch mounted on top of the valve cover. Currently is it jumpered out to run so pretty sure switch has failed. Engine is OK 1478989 serial number... Thanks alot, Jon
  3. joey nathan

    Manufacturing Site

    Just curious. Where was my 1975 Evinrude 70HP made? Were the Johnson models made at the same facility? Do these companies still produce these engines at this same place? Was this a union shop? Is the history of this documented anywhere?
  4. joey nathan

    Rope Starter

    '75 70HP Evinrude On a whim I picked up a new rope and vinyl bag to store it. Did this actually mount somewhere inside the engine's cowl? If so, how did it attach? Thanks and Happy Independence Day to All...
  5. joey nathan

    How Low Can I Go?

    On oil-fuel mixture that is! 1975 70HP Evinrude. Runs very well, however I'm thinking of backing off on the 16 ounces of TC oil for each 6-gallon tank. Significant smoke when idling, and if I'm trying to fish while idling and the wind is from the stern it is pretty bad. Can I safely go with...
  6. joey nathan

    Couple Questions

    '75 70 Evinrude What is compression ratio on these older two-strokes? Nothing listed in service manual and I was simply curious. Also, while running, my voltmeter will go up to close to 17 volts. It does come back down to 13.5/14 in it's normal cycling however. Can this be correct? Seems...
  7. joey nathan

    Lesson Learned

    I'll be the first to admit what a rookie I am at this boating thing. At 56, this is my first boat ever and I've had a very interesting three months getting it ship shape. Yesterday was the big debut and all was well for the first forty minutes or so. It ran very well and, after being so...
  8. joey nathan

    Bearing Hsg Leaking

    So, after a month or so of renovation and replacing the water pump, starter solenoid, and rectifier and adding a tachometer, temp gauge, and voltmeter on this '75 70 hp Evinrude and tri-hull, I took it out on the water over the weekend. Runs great, right on up to 5200 rpm and holds a nice...
  9. joey nathan

    No Evidence

    Of my boat or it's manufacturer. Does anyone else own a Sport Fleet Deluxe by Vari-Products of Hermann, Missouri? Googling it yields little or nothing so I'm turnignto all the boating veterans here to see if anyone has any photos, history, etc. Mine is a '75 metal-flake blue/silver 15'...
  10. joey nathan

    Bearing Buddies

    Looking for suggestions. Starboard side of my old trailer doesn't have bearing buddy, port side does. I recently discovered why, somewhere along the line the part that should hold the matching 1.980" size buddy has been opened up to around 2.025" I can only imagine how this might have...
  11. joey nathan

    Temp Sending Unit

    Has anyone retro-fitted their outboard with an aftermarket temp gauge? (Okay, dumb question, but...) Where can I safely drill/tap into the side of the intake for thermocouple/sender? Prefer to do this with intake manifold in place. I have a '75 Evinrude 70HP 3 cylinder Thanks in advance...
  12. joey nathan

    Temp Sending Unit

    Has anyone retro-fitted their outboard with an aftermarket temp gauge? Where can I safely drill/tap into the side of the intake for thermocouple/sender? Prefer to do this with intake manifold in place. I have a '75 Evinrude 70HP 3 cylinder Thanks in advance...
  13. joey nathan

    Evinrude Tachometer

    I have to order a replacement rectifier anyway due to failed red 12V lead. Would like any recommendations on a tach for my '75 3Cyl 70HP Currently have no gauges whatsoever and due to very large rack/pinion system behind the steering wheel helm area have very little room either. Is digital...
  14. joey nathan

    Starter for Evinrude

    Not in our parts list. '75 3 cyl 70HP Please, does anyone know the cross reference part number? Solenoid available, no problem Model 70573-B and Serial Number J0006792 Thank You... Jon
  15. joey nathan

    Gauges for Outboard

    '75 3-cylinder 70HP Evinrude How do I go about getting the correct tachometer for this engine? Is it a matter of how many "poles" in the stator? Or will any tach set up for a 3 cylinder work for me? How do I determine number of poles? Has anyone instrumented an outboard with the full...
  16. joey nathan

    Do I have Large Gear Case?

    '75 70HP 3cyl Evinrude Model 70573B - Prop thrust washer is missing and prop has been grinding into lower case. Thrust Washer for Johnson/Evinrude 318841 127084 is part listed with caveat that it's for large case; how do I tell? Shaft is 1" diameter Thanks for any help...
  17. joey nathan

    Pressure Relief Valve

    Someone enlighten me please. '75 70HP Evinrude - been sitting 5 years. I took it out for a fifteen minute shakedown the other day. Started, shifted, and ran fine! How's that, didn't even change plugs?! Just toodled around cove near boat ramp without ever going more than 1/3 throttle, just...
  18. joey nathan

    Pressure Treated Plywood

    Need to replace floor and one 2x4 stringer in my old boat. Question is, Can I use std 4x8 sheet of 1/2" treated plywood from Lowes? Will the resin, fiberglass cloth adhere to it well enough be water proof again? Where do you guys get marine plywood in the South/North Carolina area? Thanks...
  19. joey nathan

    Rack and Pinion Froze Up

    Hello All, New to boating hobby as I recently inherited 1975 fiberglass tri-hull. It's sorta rough but I'm taking it on as a long term project. Among various problems, I can't turn steering wheel. So I removed steering wheel and rack. Rack itself is not frozen. If I loosen steering cable...
  20. joey nathan

    Can I Retrofit Trim/Tilt Unit?

    I have a 16' Tri-Hull with 70 HP Evinrude. Both 1975 vintage. Where would I get a trim/tilt unit that would work? Does this require two batteries? Thanks in advance...
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