EVO ultra charging problem
HDF Community Team
Joined: Dec 2005
Posts: 5,422
Likes: 2,621
From: NC USA
Sometimes we do what we have to do but as mentioned, best to go with quality parts - OEM, Cycle Electric or Compufire.
The rotor should be fine but I'd suggest you replace the VR with a new stator. Reason being, the modern 32amp quality regulators (as listed) use a different circuitry that unloads the stator when voltage is maxed, whereas the cheap ones simply dump the voltage off thru a zenier diode in the form of heat, keeping the stator fully loaded at all times.
The rotor should be fine but I'd suggest you replace the VR with a new stator. Reason being, the modern 32amp quality regulators (as listed) use a different circuitry that unloads the stator when voltage is maxed, whereas the cheap ones simply dump the voltage off thru a zenier diode in the form of heat, keeping the stator fully loaded at all times.
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6th Gear
Joined: Feb 2012
Posts: 12
Likes: 6
From: tn
If that is from the stator pin to ground (either one of the pins) There's your problem
Do this with bike turned Off / not running
With the meter set to Ohms
Connect the black meter lead to ground
You measure this with the stator connection apart and put the red meter lead to one of the pins in the connector that goes to the stator.
Do this for each pin in the connector
WP
Do this with bike turned Off / not running
With the meter set to Ohms
Connect the black meter lead to ground
You measure this with the stator connection apart and put the red meter lead to one of the pins in the connector that goes to the stator.
Do this for each pin in the connector
WP
HDF Community Team
Joined: Dec 2005
Posts: 5,422
Likes: 2,621
From: NC USA
Set the meter at it's lowest ohm setting - x1, x10, x100 whatever. If it's auto range, it'll do it by itself. Qualify the reading by touching both leads together and see what it reads. If it shows .1 or .2 or whatever, subtract that from the reading you get on each pin. Leads will most often have some resistance, even new ones....
Seasoned HDF Member
Joined: Apr 2011
Posts: 6,185
Likes: 2,134
From: W. Texas
Chit I can't recall what the connector looks like ona 92 ultra to describe any better
If you can get this test figured out to do it properly you want No read at all. In other words OL /out of limits / no continuity
If you get any reading at all it means the stator or it's wiring is shorted to ground
WP
Last edited by WP50; Jul 6, 2022 at 06:27 PM.
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6th Gear
Joined: Feb 2012
Posts: 12
Likes: 6
From: tn
Looks like the stator had shorted to ground even through it was only a week old, not sure if it was something I inadvertently did or what. I ended up going with a Compufire 3 phase kit and just started over from square one. Everything is working good now, probably better for a 30 year old bike with over 100k on it.
Thanks guys for the help! Been a lurker on this forum for years and its usually had my answers without me having to post anything.
Thanks guys for the help! Been a lurker on this forum for years and its usually had my answers without me having to post anything.
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Joined: Sep 2010
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From: Beyond Fucital
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6th Gear
Joined: Feb 2012
Posts: 12
Likes: 6
From: tn
After talking with the guys I know at a local shop theyve said the quality of parts has really gone down even on reputable brands.
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