Recent content by mrc

  1. M

    2004 Mercury 4stroke bigfoot not charging.

    I don't have a service manual for this motor (anybody know a source for one?) Tach works fine. I am fairly familar with outboard charging systems but without a manual it's fairly tough. Can somebody walk me through the diagnosis and parts locations? Thanks in advance, Mike
  2. M

    Question electric shift lower unit oil....

    Engine 1970 85hp Johnson.<br /><br />I went to fleet farm to pick up some stuff and happened down the isle with different types of Lube. There I found:<br /><br />"Citgo Supergard lower unit premium gear lube"<br /><br />"Recommended for:<br /> All outboards<br /> All Stern Drives<br />...
  3. M

    1970 - 85hp Overheat. - Sort of :)

    Hi folks,<br /> I have a 1970 85hp Johnson which was running well last year. Last fall I replaced the water pump housing and impeller. This year the motor is boardering on overheat at full throttle. Also noticed that the water exiting the exhaust relief vents at full throttle is not as...
  4. M

    3 Questions on 1970 85hp Johnson

    1) Excessive play in throttle cable, Is ths fixable?<br /> Accellerate to any given RPM and need to back <br /> the throttle off almost an inch of travel before<br /> any effect. Then need to throttle up almost an<br /> inch before the RPM's pick up. This is from the <br /> remote...
  5. M

    Old model OMC tilt not staying tilted.

    This is about the first model power tilt that<br />OMC made (not trim). Pump outside the bracket<br />feeding a single cylinder on the inside of the<br />bracket which replaces one of the two shocks.<br />A seperate mini cylinder which operates the reverse<br />lock release. It is on a transom...
  6. M

    Pressure/Vaccume testing lower unit

    Simple question. With lower unit filled or drained<br />or somewhere in between?<br /><br />(If it matters, 1970 85hp Johnson Electric Shift)<br /><br />Thanks,<br />Mike
  7. M

    Tis the season... to rebuild carbs... How to get the needle valve bearing out

    1970 85hp Johnson. <br /><br />Little plastic gizmo that slides over the needle valve and gets stuck down at the end<br />of the needle valve shaft. How to get it out?<br /><br />Tried crochet hook to no avail. <br /><br />Any ideas?<br /><br />Thanks in advance,<br />Mike
  8. M

    1970 85hp Johnson engine leaf valve (reeds) replacement

    I have the aforementioned engine, does anybody know if Boyesen (or anybody) <br />makes aftermarket replacements for these parts?<br /><br />Thanks in advance,<br />Mike
  9. M

    Newer boat, older engine. HP ratings.

    Given a late 80's vintage boat rated at 85hp (after the switch to Prop HP)<br />Would I be able to drop a early 70's vintage 100 on it under the argument<br />that the 100's went 88hp when they switched from crank rated HP to prop rated?<br /><br />Mike
  10. M

    dry plug...

    1970 85hp V4. Idles rough, seems to be only running on 3 Cyl until 3Krpm. Then runs<br />great. <br /><br />Cyl 1,2,3 plug damp when removed. Cylinder 4 plug is dry. Surface gap plugs. Good <br />spark on all 4.<br /><br />Compression is 115psi across the board.<br /><br />Engine runs...
  11. M

    Joe Reeves, If you have a chance, could you look my last entry in this thread?

    I would really appreciate it.<br /><br /> http://www.iboats.com/cgi-bin/ubb/ultimatebb.cgi?ubb=get_topic;f=17;t=017416 <br /><br />Thanks in advance,<br />Mike
  12. M

    What was low alternator output is now poor ignition. 1970 85hp

    Hi guys, Well in the attempt to solve the problem I posted earlier about <br />(Low alternator output). I pulled the flywheel in order to replace the <br />stator. Since I had the wheel off, I decided to check the points. The points closest<br />to the carbs was open too far, so I cranked it...
  13. M

    Loaded question (boat selection)

    Hiya folks, I'm looking for some advice.<br /><br />I'm looking for good quality 17-19ft Bowrider style<br />boat with outboard for Skiing/Tubing/Fishing... etc<br />all around family use. I live on a smallish inland<br />lake so use will be frequent, but under relatively<br />benign...
  14. M

    Low alternator output question

    Hi folks,<br /> I'm having some problems with 1970 85Hp Johnson Alternator. This is the most basic setup with a 9 amp stator under flywheel with Bridge Rectifier, no regulator. <br /><br />The original problem was no alternator output, and no tach reading. Replacing rectifier which was...
  15. M

    YANQ :) Force 85 HP Rectifier

    Folks it sure looks like a bridge rectifier.<br />Is it just a bridge rectifier or does it have<br />some voltage regulation charactoristics to it? (12 pole alternator) 1986 model year.<br /><br />I would rather pay 8 bucks at a electronics<br />store the 25 at a marina.<br /><br />Thanks in...
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