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  1. J

    703 yamaha controls not working

    well i found the key and i couldn't get anything in the controls to work. All the wiring inside the control box seems fairly straight forward color to color. The only multi parts seem to the all the black wires. Where do they all go? How can I test out the controls or maybe the box on the on the...
  2. J

    30hp Yamaha 1991 oil out of holes?

    I was putting in new gear oil and when I was pumping it in the bottom, with the fill level screw out, Gear oil came out of two little holes? they look like vent holes or soemthing. Is this normal behavior? I am going to pull the lower unit back off and change the water pump, just wondering if I...
  3. J

    OIl Injection testing?

    Ok, so I just picked up and installed a new powerhead and I wanted to be sure the oil injection is working. to my understanding the safe way to do this is to run 50-1 mix and check to see how much oil is being used from the tank. This is an early 90's yamaha 30hp 3 cyl. I have checked the...
  4. J

    Steering between different motors?

    Just wondering if the steering controls are universal between the different boats? I particular the smaller single cable steering systems. I am going from tiller to console with a '91 yam 30.
  5. J

    91 Yamaha 30 - Remote no keys

    Hey guys, ok, so I just bought a set of control minus the keys, he is gonna mail them to me, so in the mean time I wanted touse a jumper wire for the ignition does anyone know what colo wires to cross?
  6. J

    yam 30 powerhead and lower unit interchange

    I have a 2000 yamaha 30 2 stroke with a blown powerhead, how far back can I go to get a powerhead for it? Or what years will my lower unit fit on?
  7. J

    2000 30hp yamaha seized'ish

    Ok, so I just picked up this motor, and ran it a week ago, it was down a piston, so I checked it out, and one spark plug was dead. no spark, changed the plugs and put it in the water yesterday. Oil was full gas was fresh, let it warm up a bit at the dock, and took off. Hopped up on plane and...
  8. J

    1989 30hp ya, - power upgrades?

    Just wondering if the 30 yam is a restricted 40 - 50 etc.. I know of some engines that mearly had a restrictor plate or different jets... Is this the case with an '89 30hp? Can it be bumped to a 40 or 50?
  9. J

    Yammy 30hp tiller..Off Button and OIL Injection?

    Hey guys just bought an '89 30hp yammy tiller. This is my first outboard with oil injection, I am just wondering if there is any danger of relying on the oil injection or if I should just disable it and pre mix? I never had a problem pre mixing but have heard various horror stories of oil...
  10. J

    1981 70hp Johnson Kill switch install

    So, I am gong to be installing an aftermarket kill switch does anyone know what wre it should be hooked up to or what the wiring is? I would assume you just cut and splice the kill switch into one of the ignition wires.... Thanks.
  11. J

    Performance parts?

    Well folks, just wondering if anyone knows what may be available for the 70hp johnson's as far as performance parts? Things like velocity stack, exhaust tuners etc... Trying to squeze out a few more rpm's to jump up a prop. Its for a bass boat application. I know I can get boyesen reeds, but...
  12. J

    Gasket drying time?

    Just wondering how long you have to wait use an outboard that has has the head gasket repaird and a new head gasket installed? I wold imagine there is some curing time as the manual calls for sealant.
  13. J

    Low Even Compresion..When to rebuild?

    At what point would you consider reboring, sleeving, rings, valves, when your compresion is tested even but low? eg 100psi, 90 psi, 80 psi etc.... Is there much power loss with a motor with even compresion but in the low 100's, 90's, 80's? Everyone talks about even being fine if its low why is that?
  14. J

    Prop to Crank HP rated engines?

    I am just wondering what would the effect be of switching from an older 70hp(crank rated) to a newer 70hp(prop rated)? Would it be a big engough HP increase to be able to go up a pitch or two in prop sizes? Or would the effect be negligable? For discusion sake lets say a 1981 70hp johnson to a...
  15. J

    Gear ratio? '81 70 jony

    Just wondering what the gear ratio is for a 1981 70hp johnson. I can't seem to find it in the seloc manual
  16. J

    Bass boat Prop advice...

    1993 Stratos...15 1/2' feet long 1981 70hp Johnson(max hp of boat is 70hp) Can't get out of the hole unless the passenger of batteries move to the front. once I am up on plane it rides good. seems to have lots of prop slip though. 5400rpm's 33mph I assume the gear ratio is 1.83(but I could be...
  17. J

    Prop selection....

    Ok, so I have a 1993 Stratos 250v 15'6" with a johnson 70 2 stroke, I have a run of the mill alluminum 17 pitch prop right now. Its right on the bare edge of not being able to get on plane. So much so that if I put my trolling motor batteries in the back I can't get on plane. I also have smart...
  18. J

    '81 johnson, 70hp no power?

    I sold my 50 after I amanger to get it running right, then I bought a 70hp. It idles perfect, starts up great. No missing or anything. I put it in the water today and when I gave it it gas the boat would not plane out. Again I had it pinned and I couldn't get more than 5 mph. It sounded ok, no...
  19. J

    johnson decals?

    Does anyone know an online place that sells all of the decals for johnson outboards?
  20. J

    Another Merc model and year ID?

    Ok I have checked the serial number charts but I can't find it. anyonw knwo what year and model this is? I believe its a 65hp 3 cyl.. This is teh serial number 7039714
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