Stator R-n-R, how much trouble am I in?

[camos]

Today I pulled out the old burnt out stator and while re-installing the case the pin that goes into the starter gear fell out. Most likely it managed to get itself into the case since it was nowhere else to be seen. I can't see it in the case but it is definitely not on the floor or otherwise visible so....

[Flyinfool]

You could try to go fishing in the case with a small magnetic pickup tool.

If it did bounce into the case it should not have gone far.

 

Are you sure it was there in the first place?

 

Or are we thinking two different pins.

[dingy]

You would have to be one really unlucky individual for it to have went into the one hole it could have went into.

 

1st picture attached shows a hole just ahead off and below C/L of stator.

 

It will be a PIA to get out if it is in there. I would think a snake cam would be your friend. Harbor freight has them for about $79. I have one and it has come in handy a couple of times.

 

http://www.harborfreight.com/digital-inspection-camera-67979.html

 

You can get the oil pan off with the motor in frame, but exhaust have to come off.

 

Gary

[camos]

You could try to go fishing in the case with a small magnetic pickup tool.

If it did bounce into the case it should not have gone far.

 

Are you sure it was there in the first place?

 

Or are we thinking two different pins.

The case would not go on because the shifter lever was not quite oriented correctly so I pulled the case back off and heard a metallic clink, clink but no thud so it's unlikely to have hit the concrete. Didn't appear to be on the floor but will go and have another look since I don't have a magnet pickup tool so tomorrow is as soon as I can get one.

 

Since I can't see it I'm not 100% sure of anything. Also don't have a small mirror. There are a couple of 1" or so holes that the pin could have easily fallen through but no direct view of the bottom of the case.

 

If that doesn't work what is the easiest way into the case?

[camos]

You would have to be one really unlucky individual for it to have went into the one hole it could have went into.

 

1st picture attached shows a hole just ahead off and below C/L of stator.

That's me, that's me.

As I recall there were at least 2 holes under the stator that could have been an entry point.

It will be a PIA to get out if it is in there. I would think a snake cam would be your friend. Harbor freight has them for about $79. I have one and it has come in handy a couple of times.

 

http://www.harborfreight.com/digital-inspection-camera-67979.html

 

You can get the oil pan off with the motor in frame, but exhaust have to come off.

 

Gary

Well, the collector is broken so it will need to come off sooner of later anyway. Possibilities, thanks.

[muffinman]

Clive dont be surprised if the offending pin is not stuck to the magnet for the stator most likely down low ( dont ask me how I know)

Jeff

[MiCarl]

 

Yep. Rotor is one real powerful magnet. If it even got close it's stuck to it somewhere.

[Flyinfool]

Clive dont be surprised if the offending pin is not stuck to the magnet for the stator most likely down low ( dont ask me how I know)

 

 

 

Jeff

:sign yeah that:

 

I was thinking this very same thing when you said you heard a metallic clink clink.

The magnets that are in the flywheel are quite strong and your pin is likely to be stuck to it somewhere.

[camos]

Clive dont be surprised if the offending pin is not stuck to the magnet for the stator most likely down low ( dont ask me how I know)

 

 

 

Jeff

A flash of hope!

Went out again to have a look just in case but no such luck.

The pic below shows a hole on the left with a very (in)convenient chute into it. Probably landed there and shot right in.

 

I'll try the mirror and magnet method tomorrow.

 

Thanks for the input though, much appreciated.

[kevin-vic-b.c.]

Clive when you are finished with yours and have learned all the things not to do, I have a new stator in the mail headed for my 86.

[camos]

You are such a ray of sunshine Kevin.

 

I took a bunch of pix and have written a procedure that will not include snapping a bolt off or dropping stuff inside the engine. Perhaps I'll get it posted before you need to start your install.

[dacheedah]

Did you get it out or have the opportinity to inspect the mag yet?? If it were me I'd personally pop for one of those cameras. I just found a bolt I lost a couple years ago, it bounced up and landed on the frame a dewalt radio that I have taken all over the place. They find crazy places to hide in plain sight. . .

[camos]

After getting an extension magnet and an extension mirror today it only took two tries to capture the pin.

 

The mirror was no help since it would not fit through any of the holes into the case. It was the smallest mirror Canadian Tire had although a specialty tool store may have a slimmer model. The snake camera would have been the bee's knees for that purpose. If it ever comes up, I'll be voting to become the 51'st state. Fed up with the cross border Hoo-Haw.

 

Thanks to all for the ideas and moral support.

[Flyinfool]

I guess you really are the unluckiest person to be able to drop that pin and have it find its way down that hole.

 

Maybe you should go buy a lottery ticket, you just used up all of your bad luck.

 

Glad you found it, Would hate to see what would happen if it found its way to a gear:scared:

[camos]

I did wonder how lucky I was to have found the pin so easily. I could not see in there but could feel some bumps and stuff so knew it was not just an empty pan. Are there gears in there?

 

It is not much of a stretch for the falling pin to find the hole. The pin normally would be in the right hand gear at the top left of the pic. The hole is directly under the gears and has a metal chute that would catch anything that fell and direct it into the hole.

 

Another great Yamaha design feature.

[dingy]

I did wonder how lucky I was to have found the pin so easily. I could not see in there but could feel some bumps and stuff so knew it was not just an empty pan. Are there gears in there?

 

It is not much of a stretch for the falling pin to find the hole. The pin normally would be in the right hand gear at the top left of the pic. The hole is directly under the gears and has a metal chute that would catch anything that fell and direct it into the hole.

 

Another great Yamaha design feature.

 

 

Couple of pictures of the lower half of the block with transmission, crank & balancer shaft in place. Oil pan is not on at this point.

 

Gary

[camos]

Couple of pictures of the lower half of the block with transmission, crank & balancer shaft in place. Oil pan is not on at this point.

 

Gary

If the pin could have fallen into that area then it would appear that I may have used up several years of my good luck quota. Perhaps I should stay in bed for at least the near future and dream of sugar plums.

[camos]

Clive when you are finished with yours and have learned all the things not to do, I have a new stator in the mail headed for my 86.

I just uploaded the Stator Replacement Procedure here:

http://www.venturerider.org/forum/showthread.php?p=745524#post745524

[jasonm.]

I did wonder how lucky I was to have found the pin so easily. I could not see in there but could feel some bumps and stuff so knew it was not just an empty pan. Are there gears in there?

 

It is not much of a stretch for the falling pin to find the hole. The pin normally would be in the right hand gear at the top left of the pic. The hole is directly under the gears and has a metal chute that would catch anything that fell and direct it into the hole.

 

Another great Yamaha design feature.

I am confused. Just taking off the cover...nothing can fall into the engine except the small shaft(s) the starter gears are on. What "pin" was this? or do you mean small gear shafts ?

[camos]

I am confused. Just taking off the cover...nothing can fall into the engine except the small shaft(s) the starter gears are on. What "pin" was this? or do you mean small gear shafts ?

There is a splined shaft in one of the gears and a pin shaft in the other gear, the one closest to the flywheel. The pin shaft is smooth and fits into the cover. When I pulled the cover the pin stayed in the cover which allowed the gear to drop out of position. I noticed the gear was slightly out of position but thought the pin in the case would align the gear when it was reassembled. It didn't realign and I could not get the case to go all the way on. When I removed the case to see what was causing the problem the pin shaft came out and fell down to the hole just below it. There is a "flange" or what I refer to as a chute at the hole which caught the pin and directed it into the engine.

 

This is why I recommend the pin shaft be in the gear prior to reassembling the case. The gear it fits into is just sitting there with nothing holding it other than the pin shaft. To align the gear with the hole it is necessary to turn the gear one tooth at a time to get it in the correct position. Since the bike was laying on its side, this would likely prevent the gears from falling out.

 

The pic I took was originally intended to display the holes things could fall through into the engine. It would have been better to have included more of the gears. They are visible in the top left of the pic. The hole the pin fell through is right below the gear and the chute can be seen well enough.