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Electrical Outline

  • Thread starter Thread starter wishy
  • Start date Start date
W

wishy

Guest
Just trying to adj to Suzuki thought process on electrical. Maybe its a real "street" bike thing in general I don't know. I have until now always had 1 lung thumpers mostly Honda. So here goes correct me if I am wrong. This is not a in depth break down just the basic operation if you will.

Stator and RR take care of battery charging light running duty. No Ignition pole on stator. Power to ignitor is DC from battery?

Ignitor is basically you CDI if you will runs/charges coils and trigger tells the when to go?

This might seem like dumb questions, but I have to understand basic operations of things so I can trouble shoot. I always start with the simple stuff and work from one end of a system. Just have to have a understanding of said systems first.

Weak spark no run situation on the project bike.

Thanks Chris
 
Why not just use the troubleshooting procedure in the Suzuki Service Manual?

Find one here:

http://members.dslextreme.com/users/bikecliff/

Your outline is mostly OK, except figure the signal generator is like the points, it sets the timing of the spark. It only makes a tiny signal at the right time, so the ignitor is used, it's like an amplifier which makes this tiny signal big enough to operate the coil. There is no CDI at all.
 
So its a fancy points ignition with its own power supply outside of the stator. I get the trigger is basically points thing.

Thanks Chris
 
wishy said:
..........

Stator and RR take care of battery charging light running duty. No Ignition pole on stator. Power to ignitor is DC from battery?

Ignitor is basically you CDI if you will runs/charges coils and trigger tells the when to go?
..........
Click to expand...

Yes Yes Yes

Yes

You said weak spark.
Check voltage at the coils (org/grn wire).
Power to the coil is from the ignition fuse, which if from the ignition switch, which is from the main fuse which is from the battery... and a few connectors along the way.

Also suspect maybe the spark plug caps. THe caps can be twisted pulled off the wires. THey have resisitors in them, the caps are suppose to be 5000 ohms (5K) each, but go lot higher over time and usage.

Also check the battery voltage while cranking the starter.

.

.
 
Last edited:
The magnetic trigger on the crank and the ignitor (together) are basically just electronic points. The "power supply" for the coils is just what is supplied by the battery and/or the stator and R/R combination.

It's really not much more complicated than a street-going thumper. The emphasis here is "street-going". Bikes that have a battery for the ignition and possibly an electric starter. The battery supplies current that turns the coils into electromagnets. When the points interrupt that current, the collapsing magnetic field sends current through the high-voltage windings to the spark plugs. On our bikes, instead of mechanical points, you have a magnetic trigger that sends a pulse to the ignitor, which is just an amplifier, as tkent said, and its transistors interrupt the current to the coils. No magic. No CDI.

.
 
Thanks for the imput fellas. Makes sense to me. Also thanks for link to the manual! �� I got the part I need printed out. Thing is gonna be a project for sure.
 
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