Search results

  1. P

    No spark 90 hp 1999 Force after switchbox replacement

    OK now that makes more sense. You are correct, that is the Voltage regulator. That typically is not involved in the ignition system, however, it can affect it, since the charging voltage is generated by some seperate coils on the ignition stator. The ignition stator has another set of...
  2. P

    No spark 90 hp 1999 Force after switchbox replacement

    Usually the yellow wires are that come from the stator are the battery charging circuit. Hmmm, I'll look a t a wiring schematic. Are you positive that it's a 1999 with a Switch Box? I believe that they stopped using the Switch Box ignition system around 1995. From what I can see in the...
  3. P

    No spark 90 hp 1999 Force after switchbox replacement

    Disconnect the Black/Yellow wire on the Switch Box. This is the ignition "Kill" circuit. If you get spark with the Black/Yellow wire disconnected, then you have either a bad Kill switch or a short to ground on the Black/Yellow wire. NOTE: If the engine starts with the Black/Yellow wire...
  4. P

    Force 75 threw a magnet at us

    There should be a spring under the thermostat housing that holds the thermostat against the horse shoe shaped spacer and rubber thermostat seal. If any water is leaking past the thermostat seal, you may get a low reading. If everything looks OK, I'm not sure I'd worry too much about the...
  5. P

    Force 75 threw a magnet at us

    You can do like Jerry says, if you have access to a bore scope/snake cam, you can go through the carb...or take if off and go through the adapter plate/intake manifold to inspect the reeds. They sit right underneath the carburetor. Thery're kind of hard to see on the 75HP motor because of how...
  6. P

    Force 75 threw a magnet at us

    Just a thought....I've seen quite a few of the 1995 and later motors that have broken/cracked a reed petal or two.
  7. P

    Force 75 threw a magnet at us

    The flywheel pictured was one I had purchased years ago for an ignition system upgrade. This particular flywheel fit the late model larger diameter Mercury style crankshaft, which was not what I needed. I went out to my shop, but it was nowhere to be found. It was not sitting with all my...
  8. P

    Force 75 threw a magnet at us

    Is this what your flywheel looks like?
  9. P

    Carbs leaking fuel 1988 force 125hp

    Just for clarification.....when you say the carbs are leaking, are you saying that the fuel is spitting out of the mouth of the carburetors? Is this happening only at initial start up or is it doing it while running ?
  10. P

    90 compression on 135 hp

    90 pounds is lower than you'd want to see, however, considering the conditions, 45 degrees, it might affect your readings. Also if your starter is not spinning the motor at normal cranking speed, it will affect the readings. The good thing is that there is not a significant difference between...
  11. P

    Starter engages the flywheel but won't spin the engine

    Part# 50-853869 is equivalent to an Arco 5393 starter which is used by many of the 3 and 4 cylinder Chrysler and Force outboards. Like Jerry mentioned...make sure that all of your battery connections, both Positive and Negative are clean and making good contact. If you haven't already done...
  12. P

    Force 75 threw a magnet at us

    Not sure that I'd go out and get a flywheel just yet. The fact that you are getting what appears to be good spark, probaly means that the Flywheel magnets are doing what they are supposed to do. The tach issue may be an indication of either a problem with the tach, or the...
  13. P

    1994 Force Mercury 120hp No spark

    Try disconnecting the Black/Yellow wire from the Switch Box, crank the motor and see if it you get spark to the plugs. Or you can test to see if the Black/Yellow wire is grounded. Disconnect the battery. Turn the ignition key to the "ON" or "RUN" position. With an Ohm Meter. put one lead...
  14. P

    1994 Force Mercury 120hp No spark

    Like Red Barron mentioned....the Black/Yellow wire on the ignition switch box is the ignition kill circuit. Disconnect it from the Ignition Switch Box and if it starts, then you either have a bad ignition kill switch, or a wiring issue. To stop the motor, you'll have to choke the carbs to...
  15. P

    head gasket - new and old look different

    The replacement gasket will work just fine. The only water passages between the block and head are located at each end of the gaskets. There are no water passages between the block and head around the cylinders. The new gasket actually has more sealing area than the old one. Make sure you...
  16. P

    Carbs leaking fuel 1988 force 125hp

    A word of caution. If the material that the floats are made of are the hard foam stuff, they may not be a buoyant as they were when they were new. This will affect the float level setting. You have to either replace them or if using the old floats, set the float level so that they are about...
  17. P

    1983 85 hp force hole shot engine dies

    Sounds like the motor might be starving for fuel. 1. Start by checking/replacing the fuel lines, make sure the fuel pick up is not restricted by debris in the tank. 2. Make sure the primer bulb is functioning properly and not resticting flow. Does the primer bulb get firm after you squeeze...
  18. P

    lower unit swap from a 85hp to a 125hp

    The factory gear ratio on the 1984 125HP is 1.73. That is for every 1.73 revolutions of the motor, the propeller will turn 1 revolution. The factory gear ratio on the 85HP is 2.0. That is for every 2 revolutions of the motor, the propeller will turn 1 revolution. Generally, this will increase...
  19. P

    1984 Force 85HP starter will not operate - all wiring appears to be correct

    Make sure the Neutral Safety switch isn't bad or mis-adjusted. It's located on the throttle cable linkage. Little black rectangular switch and has two yellow wires going to it. It has two screws that you can loosen and adjust the position. See attached photo. Disregard the yellow arrow and...
  20. P

    CDI to CDM force 90 Sport Jet

    I had a 1988 125hp motor that had a crack in the block. I took all the guts out of the 1988 motor and put it into a later model big bore block. I had to buy larger diameter pistons to fit the block but it worked just fine. I have no idea what year the replacement block was, but it had a setup...
Top