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  1. R

    1994 Force 120 Low compression on top cylinder

    That cylinder may not be scored, but the piston is burned. (At least I don't see any serious scoring, but a quick clean with a scotchbrite pad to clean the crud and aluminum off. If not scored then a piston would take care of the issue. What is the piston size. usually stamped on the top often...
  2. R

    1995 90 HP

    Sad that your old Force has bit the dust. There should be a number of people who need donor parts like the flywheel and ignitions pieces. Personally I think that even with the quirks of the Force they have given good service if maintained and the new 2 strokes with all of the air pumps and...
  3. R

    MISSING!!!!!

    Perhaps the original information needs to be posted here and not at the end of a link that can be missing?
  4. R

    puzzled 88 85 hp has strong spark on number 2 cylinder and super weak spark on 1,3

    Here is what the CDI troubleshooting guide has to say about two cylinders with no spark: NO SPARK ON TWO CYLINDERS: 1. If two cylinders from the same CD unit will not spark, the problem is usually in the stator. Test per above. 2. If the engine has a CDI stator installed: A. If #1 and #3 are the...
  5. R

    Fuel pours out of bottom cylinder (no 4)

    The orange tube is the carb vent line and it connects to a port on the fire arrestor ("air cleaner") When running the engine pulls in any fumes from the carb vent(s). The idle screws are set per the manual. I have a 90 hp with three carbs and I run them at 1 1/2 out. I think that the further out...
  6. R

    Fuel pours out of bottom cylinder (no 4)

    Check the fuel pump again!. Either there is a leak in the fuel pump or the bottom carb is overflowing. No fuel will flow to any extent from the top to the bottom on the intake manifold as I understand it. The issue with the ride plate gasket blowing out is probably trying to start it without the...
  7. R

    warning horn

    Loud warning horn and flashing light on the console! Perhaps a 12 volt strobe type light.
  8. R

    1990 Force L-Drive: A LOT of fun but a few issues... Gear Selection & Lower End Stuff?

    In my experience with my 90 hp Sport Jet a little ether when cold is ablut the only way to get it to fire. If anyone knows a good way to get one going reliably (with the enrichment valve system) I am game to try. I have checked the reeds etc. and I know the throttle has to be completely closed...
  9. R

    Chrysler 9.9 flywheel removal

    Unfortunately the puller bolt is attached to the crankshaft rather solidly.
  10. R

    Chrysler 9.9 flywheel removal

    Hitting the crank is a bad thing on motors with ball bearing main crank bearings as you hammer the balls on the race and can dent them and hasten failure.
  11. R

    1990 Force 90 Won't Crank -Binding

    Try turning it with the plugs removed.
  12. R

    87 Force 85hp Flywheel removal

    Whatever you do be sure to go and buy some really good bolts, clean the threads with a tap and seat them all the way in. Cheap harbor freight pullers are OK --- But the cheap bolts that come with them are NOT OK. A little heat and some light rapping might help. Try to avoid hammering down on the...
  13. R

    Motor dies then won't start

    Clean the Bendix so that it moves freely on the spiral grooves. Also the starter has to "snap" when the solenoid engages so that the acceleration of the shaft spins the gear up and into engagement. If the battery is weak or the starter dragging this will not happen. Also if the engine does not...
  14. R

    Force 50HP running with cheap Honda 5 Pin AC CDI.

    Interesting. However you could also use the Mercury CDM modules as well. Harnesses can be bought one Ebay to make the conversion. However. The issue with any of the CDI/CDM modules is the question of timing advance with RPM. The difference in the Force/Mercury CDI and CDM is the trigger pickup...
  15. R

    Does this timing advance rod (1985 50HP) look factory? Should it be bent like this?

    If it is running good leave it ALONE
  16. R

    Bet up by a 1998 120hp force

    The missing ones probably went through the engine if not still in the airflow path somewhere, Actually a thousand times a minute is a little low. They flex at every revolution of the engine. So at 5000 RPM....
  17. R

    Does this timing advance rod (1985 50HP) look factory? Should it be bent like this?

    I can't see the bent rod in the picture, but a bent rod is just that a bent rod and will not change the advance timing as the two end points remain the same distance apart and the relationship will not change as long as the rid does not flex. That said I can see no reason to have something other...
  18. R

    Erratic Timing Light Reading on '96 Force 120

    A weak starter will do that as well as it cannot keep up when the cylinder goes over TDC. Also a dragging starter might just be barely turning the motor fast enough the get the magneto to the coming in speed where the coils generate enough energy to make a good spark. In airplanes the mags often...
  19. R

    Bet up by a 1998 120hp force

    Replace the reeds, don't bend etc. There are aftermarket reeds available. The plugs that are so clean that they look new are out of cylinders that are not firing.
  20. R

    Force 85 1989 flywheel magnet pain

    I have always used JB Weld, liquid steel, but I figured that since it was glued to the steel (iron?) flywheel it would be OK. Be sure the thoroughly clean the magnet and the flywheel as most of these turn loose due to corrosion getting behind the magnets. I can't swear that they are as...
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