Electronic Ignition and Generator Flywheel Magnets

1

1funride

Member
#1
#1
I am currently working on restoring my Super Bronc. It has it's original engine and years ago, I tried to replace the points with a cheap electronic ignition. The generator flywheel magnets were throwing off the electronic ignition and the engine was firing at the wrong time. I went back to the points to get it to run right. Is there a solution for this, so I can do away with the point?
 
MikeBear

MikeBear

Active Member
#2
#2
1funride said:
I am currently working on restoring my Super Bronc. It has it's original engine and years ago, I tried to replace the points with a cheap electronic ignition. The generator flywheel magnets were throwing off the electronic ignition and the engine was firing at the wrong time. I went back to the points to get it to run right. Is there a solution for this, so I can do away with the point?
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Use the points to fire the electronic ignition. Used that way, the points will last 30 years. Because it doesn't have to spark anymore, it won't pit, as only a little bit of current is needed to fire the new ignition circuit. Disadvantage though, is that you'd have to wire in a battery and coil, so it won't be a magneto based system. That means if your battery goes dead, you won't be able to start it.

That's how electronic ignition systems started many years ago.

Here's a circuit for a small engine electronic ignition from Home Power magazine:

http://tinyurl.com/87vvsts
 
1

1funride

Member
#3
#3
That sure will make the points last longer, but a battery is less reliable than the points.:shrug: Interesting concept though. I was hoping they came out with a new ignition module that solved this problem, since I last tinkered with this bike. Would probably need a different trigger device, such as the points in this design. A crank position sensor or such, but again, now it is getting more complicated.
 
S

sludgeboy

Member
#4
#4
Nova II ignition module

Do a search on this thing. There are many websites that sell them and forum topics on it. I would list a website but I have it saved at work and not at home.
 
1

1funride

Member
#6
#6
Thats basically what I used years ago. It will miss fire the engine due to the charging magnets. Here is a write up of the product. You would need to trigger using something other than the flywheel magnets.

NOVA II ? NEW IMPROVED SMALLER SIZE ? ABLE TO FIT IN AREAS THAT THE ROTARY #1986 NOVA WOULD NOT ? USED IN 4 & 2 CYCLE GASOLINE ENGINES ? SUITABLE FOR 2 & 3 LEG IGNITION COILS IN SINGLE CYLINDER ENGINES ? NOT RECOMMENDED FOR USE ON ENGINES EQUIPPED WITH BATTERY IGNITION OR FLYWHEELS WITH MULTIPLE MAGNETS
 
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