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Starting issue

  • Thread starter Thread starter kylemanley1
  • Start date Start date
"... Hard to believe I may have gotten a brand new stator with a shorts"

yes, it is hard to believe- I think your meter is no good at measuring very low ohms like .8 .Try another meter. And make sure it is on its lowest ohm range like 200.
 
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The ground from the R/R is grounded to frame ( I haven't grounded it to battery negative yet simply because the wire is too short) but the test is performed without stator connected to that so I don't understand how that would affect the test (I am inexperienced though so no offense)
 
What type of meter are you using to make the measurements? You need to use the lowest scale in order to make the proper measurements. If you're using a DVM that has auto range, then use that. Did you disconnect the R/R and do the dynamic AC measurements with the engine running? I think it would be less likely of having two bad stators then you doing the measurements incorrectly. Not saying it can't happen... Just less likely. That's why I was curious as to the details of how you measured out the stator. Keep in mind that the initial stator measurements must be performed with the R/R disconnected.
 
20150725_125915.jpg
This is my meter, have to admit it was the cheapest one I could find
 
You can always find cheaper! Try it on the 200 ohm scale, but make sure it has good battery!
 
Should work on the 200 ohm scale. Not the best but you shouldn't be seeing 0 ohms from stator leg to leg. When measuring leg to core use the 2000K scale. When doing the dynamic test from leg to leg with the engine at 5k RPMs use the AC measurement on the 200 scale.
 
So I decided to perform the "charging system output test" and " no load alternator test" from my clymer manual. For the charging system test it indicates that @ 5000 rpm while connecting pos lead of meter to starter relay and negative lead to ground on frame meter should show 14-15 v DC. My bike showed 12.9 but would raise .01 per sec. For the no load test connecting meter leads to legs of stator @5000 rpm it should read 75 volts Ac. My meter jumped around all over the place constantly, with highest number about 69. I will note that wires from stator after first test were warm. Battery could be a bit drained from prior tests today but did start with fully charged battery
 
During the no load test yes they were disconnected. During the charging output test they were connected
 
Might just want to borrow another meter and redo the tests with something other then a $10 DVM.

Need to see the static ohm measurements for each leg segment and for each leg to ground. Also re-measure the AC @ 5k RPM tests and record the measurements again for each segment as well. This is not about making just one measurement and being done.
 
On 200ohm scale I'm showing 01.2 when I do leg to ground on 2000k on frame I'm getting 000. And dynamic test on ac 200 I'm getting 68 at the highest but numbers jump around
 
kylemanley1 said:
On 200ohm scale I'm showing 01.2 when I do leg to ground on 2000k on frame I'm getting 000. And dynamic test on ac 200 I'm getting 68 at the highest but numbers jump around
Click to expand...

So what's the problem? Probably a crappy meter.
 
JTGS850GL said:
Might just want to borrow another meter and redo the tests with something other then a $10 DVM.

Need to see the static ohm measurements for each leg segment and for each leg to ground. Also re-measure the AC @ 5k RPM tests and record the measurements again for each segment as well. This is not about making just one measurement and being done.
Click to expand...

So with the new auto ranging meter I bought numbers are as follows:
Static ohm measurement each leg- 00.8 ( started at 0 and climbed to that and stopped)

Each leg to ground:
1st leg- 01.0
2nd leg- 00.2
3rd leg- 00.8

Ac volts @5k rpm
Leg 1-2 69v
Leg 1-3 67.8v
Leg 3-2 68v
 
What does the ohm meter read when you touch the two test leads together?
Also the most important test would have been leg to ground VAC at 5000 rpm.
Do a quick test and report those numbers it sounds like you will see marginal charging except at perhaps 5k rpm.
if it is shorted as indicated you might not get anything.
 
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kylemanley1 said:
So with the new auto ranging meter I bought numbers are as follows:
Static ohm measurement each leg- 00.8 ( started at 0 and climbed to that and stopped)

Each leg to ground:
1st leg- 01.0
2nd leg- 00.2
3rd leg- 00.8

Ac volts @5k rpm
Leg 1-2 69v
Leg 1-3 67.8v
Leg 3-2 68v
Click to expand...

I'm thinking you really don't understand the correct way to make the static and dynamic measurements. Do this:

1st: Disconnect all three stator wires from the R/R.
2nd: Mark each of the three stator wires 1 through 3. It doesn't matter what wire is what number.
3rd: Put your ohm meter on the 200 scale. Measure and record the readings between the following wires:
1-2=
2-3=
1-3=
4th: Measure record each of the stator wires to ground resistance now using the 2000K range.
1-Gnd=
2-Gnd=
3-Gnd=
5th: Measure and record the AC open voltage from each stator leg 1 through 3 to ground using the 200V AC scale. Start the engine and rev to 5K RPMs. While maintaining 5K measure each leg to ground.
1-Gnd=
2-Gnd=
3-Gnd=

Report back your results.

PS: Buy a new meter.
 
When ibtouch test leads together I get numbers jumping around from 00.1- 01.5. This is on my new $30 auto ranging meter
 
If you read the manual it will probably tell you to push a button to auto calibrate zero ohms. Once you read zero with the probes together (do not touch the metal yourself) then do the measurements again.

To be sure, you have to have a certain level of expertise in things electrical to not get yourself confused with an ohm meter. You would be better to go back to the Quick Test and report those numbers as it will probably give a better idea as it is hard to screw that up.

We can go from there if something seems a miss. What you are experiencing is the exact reason I developed the Quick Test Procedure and it happens over and over again trying to measure a stator.
 
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