Dyna Trouble shooting

When you started this thread you say the manual say's .025-.035"

they say the gap should be between .025 to .040 and i have a feeler gauge that only goes to .035 and its really loose
it looks like its beyond .040

I'm gonna double check it

Is there a adjustment? Some of these other guys run that same ignition, I don't. There is excellent customer tech support availible tomorrow from Dyna.

I don't think its adjustable. I doubled up on my feeler gauge and it might be ok its hard to check.
I will call them
Thank you Patton and motorhead

eddiem wrote:

I have power all the way to the coils and power right at the sensors. I pulled a plug wire and no spark.

Wire from coil passes through the Dyna-S module to reach ground. When the rotor's embedded magnet passes by the module, it's supposed to interrupt the flow to ground.

Appears that for whatever reason the required interruption to ground is failing to occur as the rotor magnet passes the module.

Perhaps the magnet has failed, or is obstructed by dirt or grease.
Or maybe both modules are defective.
Or the clearance between rotor and modules is excessive, as suspected.

Have heard of modules getting fried, but don't recall the circumstances.

Could there be a continuity issue in both secondary loops?
Would perform ohm check of both secondary loops.

Good Fortune!

Was there good spark on all plugs before the Dyna-S was installed?

Did the Dyna-S replace a points ignition?

What was source of the Dyna-S ignition?

Was it new or used?

Unless totally fried, it seems unusual that both modules would be defective.

Good Fortune!

It was running great,it had the older style dyna with the little box.
Its brand new from Z1.
I went back and checked the magnet seems to be fine,I did a volt check according to dyna with the magnet lined up with sensor and nothing on either sensor.
I hooked up everything according to dyna it was pretty easy since I was replacing an existing one.
If I read the instructions right there is a little voltage when the magnet is not lined up with either sensor that would explain the very dim light on the tester.
I'm lost lol

ok... I went out again this time I took the plate off and grounded it to the motor I took the new rotor and turned it between the sensors and nothing I took my old rotor and did the same thing and it worked.
Looks to be the rotor, wish I tried that earlier I did check the rotor with a screwdriver and it showed the magnet worked but I guess its not strong enough.
Thank you Patton for your help

eddiem wrote:

It was running great,it had the older style dyna with the little box.
Its brand new from Z1.
I went back and checked the magnet seems to be fine,I did a volt check according to dyna with the magnet lined up with sensor and nothing on either sensor.
I hooked up everything according to dyna it was pretty easy since I was replacing an existing one.
If I read the instructions right there is a little voltage when the magnet is not lined up with either sensor that would explain the very dim light on the tester.
I'm lost lol

did a volt check according to dyna with the magnet lined up with sensor and nothing on either sensor --- does this mean the module was allowing voltage to pass through to ground until the magnet aligned with the sensor and interrupted voltage passage to ground? Because that's the way it's supposed to work. And if that's happening, the ungrounding of a coil primary (previously charged while grounded through the module when the magnet wasn't aligned) should cause the coil to fire through the secondary loop, unless there's a problem in the secondary loop.

What were results of ohm tests on the secondary loops?

Good Fortune!

I'm not very good with an ohm's meter at all.
I'll will try to check that.
When the magnet lines up with the module it completes the ground right?

eddiem wrote:

I'm not very good with an ohm's meter at all.
I'll will try to check that.
When the magnet lines up with the module it completes the ground right?

No, the alignment ungrounds the coil primary winding, which results in coil firing. Same as when points open.

Good Fortune!

Dyna literature....

The rotor magnet needs to be facing left when 1/4 side of advancer is facing up... This correct?

Rotate the crank (17mm nut) forward for 1/4 TDC alignment with case mark... The magnet should be facing left at the left plate sensor/pickup.

Just in case... Maybe will help...



EDIT: Dim light on +12V tester...

Insure battery is fully charged... Volt meter measurement would be helpful here....

Ground clip on engine case...
Place probe tip on Battery + terminal...
Bright or dim?

If bright then good ground...
If dim, poor engine case grounding...

Place probe tip on Ignition plate +12V connector...
If bright then good splice connection.
If dim, check connection or feed from switched +12V...

Possibly ignition switch is dropping the switched power (voltage drop). Same time, even at 11Vdc, the bulb light should be fairly lit up...

Possibly bad ignition plate but the weak voltage (dim bulb) seems to be the common link here.

Just in case, here's some of the issues I found when doing my Dyna installation....

Hope it works out for you...

kzrider.com/index.php?option=com_docman&...d&gid=449&Itemid=108