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Convert CDI to points ignition

K

keven

New member
"Hi
I have a 1972 evinrude 1

"Hi
I have a 1972 evinrude 100 hp (100293R)
I am thinking of converting from a cdi system to a points and condensor ignition, due to cost of replacing the pulse pack. does anyone have information on how to do this?


P.S.

the engine has no spark, tested the pulse pack
using the method described by Joe Reeves and it looks to be faulty.( no glow at all on the bulb,
.5v on a mutimeter)
Removed the flywheel and it has dual breaker points connected to the pulse pack instead of a sensor, so I'm assuming someone has changed the
sensor and pulse pack from the original set up that was on this engine.

Thanks
Kevin."
 
"The 72 100/125hp has a sensor

"The 72 100/125hp has a sensor, the 85hp uses points. Sounds like someone switched a timer base at one time. Check the point setting as that area is critical.

********************
(Point Setting Of Battery Capacitance Discharge)
( Ignition Models - 1968 thru 1972)
(Some have points - Some do not)
(Joe Reeves)

The points must be set to .010 but no wider than .010..... BUT in some instances due to a possible slight inaccurately machined crankshaft lobe or a slight offset of one set of points, a setting slightly less than .010 would be required as follows.

Whether the crankshaft has two or three lobes, when setting the points, check the setting of the points on each individual lobe by rotating the crankshaft by hand.

You may find that setting one set of points to .010 on one lobe, then turning the crankshaft to the next lobe, the gap measures .011 or .012 (too wide). This is where you would need to close that gap down to the required .010. A gap too wide can result in a ignition miss when throttle is applied.

Bottom line, pertaining to the point setting at the various lobe locations____ .010, .010, .009, is okay____ .010, .010, .011 is not!

Thousands of parts in my remaining stock. Not able to list them all. Let me know what you need and I'll look it up for you. Visit my eBay store at:

http://stores.ebay.com/Evinrude-Johnson-Outboard-Parts-etc?refid=store"
 
"checked the points, set to .0

"checked the points, set to .010" and retested.
still looks like a bad pulse pack, so I'm back
to looking for information on converting this to a points/condensor system and getting rid of the
pulse pack. Any help would be greatly appreciated."
 
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