Re: Evinrude Lark IV Year ? 1955-1965? coils/condensors
First, a manual would really help you out here. You might find one at your local library. If you want to buy one, I can tell you the small hp Seloc one will cover your motor, since it covers '56-'70, up to 40hp. You'll probably want to do a link&sync, etc, too and the manual will tell you how.<br />Each cylinder has an independant identical ignition, so you should have two of each part. First, the coils have a long (insulated eye) and a short (uninsulated eye?). The short one gets grounded to the engine through one of the coil hold down screws. The long one goes to the terminal on its point (the one it reaches). The condensor wire also connects to the point. Finally, the kill wire coming up from below the armature plate attaches to the point. There may be two kill wires, one for each circuit.<br />Points must be adjusted so they open precisely 0.020" when the cam on the crankshaft opens them fully. The coils must be aligned as squarely as possible to the bosses on the plate - the distance between the coil and magnet (gap) is critical. There is a "special tool", ie a ring, to do this but I don't think it's available anymore. All wiring *must* be tucked down as far as possible - there is hardly any clearance between the wiring and the flywheel. Rotate the flywheel after installation to make sure it doesn't catch on anything. Torque your flywheel nut to 760 in/lbs if it's from the 50's, or 1230 in/lbs if it's from the 60's.
