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  1. The Force power

    Carburetors for 85 / 90 / 120 / 125 HP

    Do the numbers stamped in the carbs (where they bolt on the block) represent the HP or their appearance? for example air/fuel mixture-screw external on the side V.S. on top inside at front ? I'm trying to figure out if I just put a set of 120/125 Carbs on my 90HP Also they spit fuel out of the...
  2. The Force power

    Stator & Trigger tests

    I have all three plugs jump a gap of 7/16" but when I follow the checkout procedure I don't get the readings as I should; -should have 3 volts coming out of trigger-wires --I get no reading - 210 volts from switch-box to coil -- I get 35 volt going to one of the coils (#2)...
  3. The Force power

    1990 90 HP Force (with '92 Power head) Presto ignition

    seems to be running on center-cylinder only drop down test on #1 & #3 = no change Replaced fuel pump's check-valves/diaphragms & all fuel-hoses Have Spark on all Cylinders/all Carbs. full of fuel/ 150psi even compression on all / no visual defects found on Reeds. Have timing & Carbs. lync &...
  4. The Force power

    Force dual stage Fuel pump

    I found in an old post something applies to me, as my fuel pump is square & I think this is what mine is. please see below old posting & if someone knows the part# for the repair-kit; please let me know Force 90 dual stage fuel pump The pulses from the by-pass port which is fed through the...
  5. The Force power

    Force 90 hp (1990) dies at full throttle

    Well I thought she was ready for the lake! I was wrong, ran good in the barrel and on high idle (warm up lever only) now in the lake after warming up I can not get past half throttle or she dies. I'm suspect the carbs need to be checked/cleaned (the only thing I have not done) (link&sync...
  6. The Force power

    1990 Bayliner with a 90HP Force

    I bought this in January and when I got in home, put the motor off to work in my heated garage (Canadian winters) First thing I did was; got a Factory repair manual of E-bay Then read just about ever thing that I could find on my new "two projects" Went over all the wiring & work the P.O. did...
  7. The Force power

    1977 Mercury 50 hp with standard 13 pitch prop

    I'm stumped, boggs down in gear just before half open. Motor on boat & tied to the dock link & sync Carbs. Compression good & even on all 4 (130 psi) Fires on all four Revs up in neutral Idles good in gear
  8. The Force power

    Over heating warning Buzzer

    I have been reading some posts on this and I fully understand it function and how its wired. but in none of the posts (that I read) has anybody mentioned or brought up the idea I thought of to do, so here is my suggestion and let me know if this is a dumb idea. since the Termister-switch is...
  9. The Force power

    1990 Force 90 hp timing (Prestolite ignition) Bench test

    I did a static timing (cranking-speed 970 RPM) the timing is out way past 28 degrees (more like at TDC but at WOT (static) it is bang on??
  10. The Force power

    Interchanging lower-units

    I was reading some of the earlier post on interchanging lower-units but they were for different years/application. I have a 1990 model year(89 build) Force 90 hp motor with 2 spare (parts) Lower Units, they're all with a 2 piece drive-shaft but the two "spares" are dual exhaust and the one on...
  11. The Force power

    Force wiring

    Hi, I'm new at this forum and I'm not sure if I am posting in the right place (correct me if I'm wrong) I recently bought a 1990 Force 90 HP outboard and I removed it from the boat (bayliner Capri) I know how to read schematics/wiring diagrams & I have the repair manual (worked for 20+ years on...
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