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  1. 1

    '72 Merc Model 110 9.8HP Ignition Problems

    Just guessing, but does it sound or feel like something is binding up in the drive train in forward and the extra load is causing it to bog? On another note, I tested my motor Friday on the Saint John River where I live(NB, Canada) on my 1836 Jon boat. I took it over to my camp on the Miramchi...
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    '72 Merc Model 110 9.8HP Ignition Problems

    Motor is now running great. DVA reading (Spec 180 to 400Vdc) mine 330 top and 324 bottom. Ignition coil secondary circuit(+/- primary to tower): mine open in bench test or mounted with no wires attached, wires attached 567 ohms. Stator High speed coil (Spec 450-550 ohms): mine(original Merc) 174...
  3. 1

    1971 Mercury 110 9.8 Basket Case

    My Merc is now running great. When I pulled my flywheel off again to recheck the points (as suggested by Faztbullet) I discovered that the positive wire from the conderser(CDI replacement) had been cut through by the flywheel (my bad). I was able to solder in a new piece a bit longer than the...
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    '72 Merc Model 110 9.8HP Ignition Problems

    I didn't pull the flywheel but checked resistance from neg coil wires on both coils to ground by removing the wires from the coils and rotating the flywheel by hand. When points were open, circuit was open, when points were closed(for approx 90 Degrees rotation) I read 0.2 to 0.3 ohms on both...
  5. 1

    '72 Merc Model 110 9.8HP Ignition Problems

    Canadian Merc S/N 7000026 matches US Mercs S/N Range 3263263-3482752. Compression test 105 both cyl. Stator coils: High 182 ohms; Low 4780 ohms. Ignition coils: Primary; 0.4 ohms ( Spec 0.2-1.0 ohms??); Secondary; + or - to tower, no reading (Spec 800-1100 ohms??), + or - and tower to ground 563...
  6. 1

    1971 Mercury 110 9.8 Basket Case

    I am in the same boat as you. I just registered on iboats and found your post. I have a '72 Model 110 9.8 HP with the same problems. My new coils meter the same as yours. I installed new points and condenser. Good blue spark across 3/8" gap with old ignition coils, compression 105 on both...
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