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Old 08-06-2011, 09:07 AM   #9916
GSPD750
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Quote:
Originally Posted by Rookie_Rider View Post
I have changed the stator now, it was no problem at all. And I found the culprit. A small metal "thing", that looks like a needle from a needle bearing, but is now very rounded and unidentifiable. It had wedged between the stator coils or whatever they are called, and had caused some mayhem to some of the coils. Probably just shorting out the magnets, not the actual coil wiring. I have no idea where this thing came from but it is out now.
Where their has been one needle bearing that has come apart....you can usually count on more to fillow. Don't run your engine until you find the culprit or you will only cause more damage. You may want to remove your oil filter and cut it open to check for metal.
Also check the inside magnet part of the rotor for metal. Removing the rotor bolt is another story as it is a L/H thread.
The rotor sits on a needle/roller bearing on the crankshaft and if one of those got pounded out I would assume you would also have some vibration.
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Old 08-06-2011, 09:38 AM   #9917
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I will remove the cover and have a look tomorrow.
Here are pictures of the small object. it is very small, the pen next to it, the tip is 0.3mm so the object is about 4mm long and 2mm thick.

The second picture shows where this object was wedged in. If it caused the rotating drum with the magnets to be out of round, then wouldn't it have rubbed against the other parts of the old stator? It looks perfect except what you see in the picture.



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Old 08-06-2011, 03:09 PM   #9918
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Originally Posted by Rookie_Rider View Post
I will remove the cover and have a look tomorrow.
Here are pictures of the small object. it is very small, the pen next to it, the tip is 0.3mm so the object is about 4mm long and 2mm thick.

The second picture shows where this object was wedged in. If it caused the rotating drum with the magnets to be out of round, then wouldn't it have rubbed against the other parts of the old stator? It looks perfect except what you see in the picture.




Somebody you know missing a silver tooth. What the heck is that.

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Old 08-06-2011, 03:50 PM   #9919
Kamuk
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Ufm

I question if that is a needle bearing... though chewed up as it is... ?

By my experience needle bearings, being of somewhat tensile steel, will shatter upon break up under duress before getting so worn in such a way.
From the photo it does not really look cylindrical, but oval shaped; and maybe of a more malleable metal that what would be used in a bearing... ?
The photo of the stator has much better lighting and definition however.

A "hammer test" on the bit could be in order?

And certainly - unidentified flying material (UFM) inside the cases is something to define before crank up...
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Old 08-06-2011, 04:17 PM   #9920
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Is it a chunk of solder?
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Old 08-06-2011, 04:22 PM   #9921
Ladder106
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The starter gears are also located under that cover.

Maybe have a look at all the starter gear teeth? If one broke off it might easily be attracted to that nice big magnet.

Next would be one of the small starter gear spague clutch bits - like needle bearings but more "dog-bone" shaped. You'll have to pull the rotor to have a look at this but I think it's worth the trouble. Maybe that would account for the other ugly noises you're hearing from the left hand side.

Just trying to think of stuff short of engine removal and case splitting.

Ladder106 screwed with this post 08-06-2011 at 04:30 PM
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Old 08-06-2011, 05:32 PM   #9922
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Yeah, I don't think it is from a needle bearing either, because I think I would have noticed if a bearing broke that much.

Also, when I was riding it back with a new battery (after my battery ran out of juice because of the stator not working hence the battery wouldn't charge) it did not make any strange noises. The noises appeared after I changed the stator. So I will check tomorrow and see why it is making these noises.

The new stator was 5mm thinner than the original one. So I had to find 5mm shorter bolts for it. But that shouldn't be a problem, causing the noises.
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Old 08-07-2011, 04:21 AM   #9923
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Quote:
Originally Posted by Reidy008 View Post
Is the grass growing up out of the belly pan?
Yes, new life is born...
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Old 08-07-2011, 10:09 AM   #9924
Reidy008
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Nuetral Light

Can some one please tell me when the switch is on the motor for the neatral light? I can trace it back back I know some one can save me some time. My light isn't working and I would like to correct that... and I have checked the bulb.
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Old 08-07-2011, 11:36 AM   #9925
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I would agree, starter clutch and would need to make sure none of the other bits have gone walkabout, unless you are very lucky its an engine out job.

Griff
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Old 08-07-2011, 12:57 PM   #9926
Ladder106
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Neutral light switch is under a black rubber cover at about the 10 o'clock position using the gear shift shaft as the center point. It's usually covered with dirt and chain lube. Remove the countershaft sprocket cover and take a look.

Sometimes it's just the wire that had come off the switch and not the switch itself.

This is from the Transalp engine but the AT should be almost identical here.
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Old 08-07-2011, 09:11 PM   #9927
Reidy008
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Cheers Mate

Thanks.
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Old 08-08-2011, 03:48 AM   #9928
Analogo
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Location: Slovenia
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Talking XRV 750 adventure | project

Hi there fellow riders. Regular visitor on ADV forums, but never posted a pic of my bike before. So here it is.

Some upgrades done this year.

- OHLINS rear spring
- WIRTH progressive springs in front forks
- refurbished rims and new spokes
- custom license plate holder
- customized front fender and fork protection
- new XRV logo on side panels / vector files available ;)


IMG_0850

IMG_0851

IMG_0852

IMG_0854



Keep on Truckin' !
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Old 08-08-2011, 12:03 PM   #9929
Ladder106
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Quote:
Neutral light switch is under a black rubber cover at about the 10 o'clock position using the gear shift shaft as the center point.
Actually more like the 7 o'clock position....I was going from memory (which apparently is not as good as I thought)

Welcome Analogo,

Nice first post. Where are you in the world?
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Old 08-08-2011, 12:56 PM   #9930
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Cool2

Quote:
Originally Posted by Ladder106 View Post
Actually more like the 7 o'clock position....I was going from memory (which apparently is not as good as I thought)

Welcome Analogo,

Nice first post. Where are you in the world?
Thank You...;)

I'm located in Slovenia. Small dot in the world map ;)
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