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    1990 Force 120HP #2 Cyl zero compression and upon opening piston shows damage

    Yes, the connecting rod will need some play. This is what I have had in all my restoration when using aftermarket pistons such as WSM, PRO V and Wiseco pistons. Almost all those calls for this wrist pin kit WP29-1.
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    1990 Force 120HP #2 Cyl zero compression and upon opening piston shows damage

    That wrist pin kit is the one you replace the old thicker spacers and needles. It looks right assembled.
  3. N

    1990 force 50hp driveshaft spline boot and keeper

    Make a new one with the right question of thread.
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    1990 force 50hp driveshaft spline boot and keeper

    The rubber boot and the retainer are not necessary. Apply small amount of marine grade grease at the splines, no grease at the top of the driveshaft. This will keep the splines out from rust, the purpose of the boot and the retainer is the same. Pull off the LU every three or four years and add...
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    1990 force 50hp driveshaft spline boot and keeper

    Agree with topgun3690.
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    88' Force 85hp lower unit oil viscosity

    I have worked with outboards in 25 years, not for living but in free time with all different brands such as Merc, OMC, Chrysler/Force and all Japanese and generally you always fill the gear case with oil from the bottom (drain hole) and up until oil weeps out at the (level) vent hole. OEM...
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    Weak spark

    Nice to hear you got it up and running.
  8. N

    1990 Force 120HP #2 Cyl zero compression and upon opening piston shows damage

    Larger (35Hp and up) Chrysler/Force engines do not actually need liquide sealant at the crank case. They have a grove in the cylinder case were a "spagetti" seal shall be applied. Instead of the OEM red "spagetti" seal I use "O-ring" string with a diameter of 2-2,5 mm (0.08-0,10 in). Have used...
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    1972 Chrysler 85, Tolletson carburetor tuning

    The impeller is in wrong direction, the crank shaft rotate CW.
  10. N

    Gas Leaking from exhaust while priming bulb.. ?

    No, the fuel pump is driven by the underpressure/overpressure from one cylinder in the crank case. If the diaphragm is ruptured you will pump fuel through it in to the crank case when you prime. If the carb needle valve is leaking you will see fuel coming out the vent hole in the carb.
  11. N

    Gas Leaking from exhaust while priming bulb.. ?

    The fuel pump diaphragm is bad, ruptured or hole in it.
  12. N

    1990 Force 120HP #2 Cyl zero compression and upon opening piston shows damage

    I think it will work, I use Permatex Aviation No. 3 form a gasket and it has always work in many applications. In your case the purpose for it is to hold the gasket in right place when assembling the cover plate.
  13. N

    Weak spark

    When you turn the flywheel and have the spark plugs grounded you should have spark at each plug 1 time per revoultion and 120 drg from each other.
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    1990 Force 120HP #2 Cyl zero compression and upon opening piston shows damage

    As long as there are no hole in the plate....no problem. The plate will warp because of the high temperature from the exhaust it exposed to. New gaskets and some liquid sealant to hold the gasket in place when assembling. Your plate looks good in the pics.
  15. N

    Weak spark

    Not worry about the timing at idle. Just adjust the idle with the screw at the timing tower that rest against the block crank case.
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    1990 Force 120HP #2 Cyl zero compression and upon opening piston shows damage

    The groove at the crank case half has to have a "spagetti"seal. I use a "o-ring" string (2,5 mm) in the grove then I add some Permatex Form a gasket liquid gasket at the surface. It has worked all the time..... no problem.
  17. N

    Weak spark

    Great, do not take any notice to the spark advance at idle. These engines are set at WOT and the spark advance at idle will be what it will be. I suggest you to set the spark advance to 30 or 28 dgr at WOT, then you tune the idle by the idle screw at the tower shaft and fine tune the carbs by...
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    1972 Chrysler 85, Tolletson carburetor tuning

    Racerone is right, these old 2 strokers smoke and it depends on the premix. 2-2,5 % two stroke oil is the ratio you have to go for. When starting and cold they will smoke. You have to check the recirculation check valves and the screens that are there. If they are clogged it will smoke even more.
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    1972 Chrysler 85, Tolletson carburetor tuning

    I do not use the three holes in the flywheel for lifting. I have made a lift ring by welding a ring at a nut fitting the thread at the crankshaft. Older Chrysler had a lift ring bolted at the power head between the flywheel and the head. I think the 1/4 in bolts and the threads in the flywheel...
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    1972 Chrysler 85, Tolletson carburetor tuning

    Try to retard the timing til about 28-29 drg BTDC at WOT. Let the engine warm up and then fine tune the carbs. If you run at muffs set the idle at 1200 RPM, in water it will end up at about 700 RPM. But you have to set the proper idle in gear in water.
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