Mystery part...What is this pin?

[yamagrl]

???????????

 

I am in the process of doing the Time for second gear repair

 

After removing the oil pan to access the case bolts that are inside I found this pin. It is about 4mm thick x 17mm long (1/8 x 11/16) It is solid and appears to be hardened.

 

 

It was just laying right here beside Bolt #21. So I'm sure it just landed there on the last flip-over during cleaning.

 

 

The motor has been flipped and turned over several times during the cleaning phase.

 

 

I think it may have fallen out of something while removing components such as the starter, starter gears.

 

Before I started to clean the motor I removed the left crankcase cover (generator) and the starter gears fell out. That was when I decide to take the engine outside and clean it. So I put the generator cover back on but not the starter gears.

 

Of course the starter motor was removed prior to engine removal.

 

Edited June 1, 2014 by yamagrl
add info

[bongobobny]

Not sure but it looks like one of those alignment pins for mating two pieces together. I'm sure someone, like Dingy, knows for sure...

[MiCarl]

Pin from shift sector perhaps. If you have all yours compare it to them. It's entirely possible one was lost in the case before the motorcycle became yours.

[yamagrl]

It seems like this is the consensus. I also added this same post to my other active post "time for second gear repair" and that is pretty much the consensus. Thanks.

 

Sent from my moto X

[dna9656]

Pretty scary when you find spare parts in a machine that can rotate as fast as the venture motor can...it could do a LOT of damage....I would count the alignment pins and compare the number of the pins Yamaha put in there...

[Marcarl]

It could be a little pin that keeps the large bearings from spinning in the case. Take a look where the bearing seats in the case, if there is a hole there for a pin, you need to have a pin there.

[yamagrl]

I"ll look when I get to that point. The case is ready so separate. the bearings have yet to be disturbed.

[stanG]

Most likely the bearing pin.

[yamagrl]

Please explain how it could be a bearing pin. The case is not yet separated and the bearings have not been disturbed.

 

Thanks

 

Sent from my moto X

[dingy]

It is not a bearing retainer pin, they are far smaller than size of found pin.

There are no needle bearings in block near this size.

It is a shifter pin.

Gary

[yamagrl]

Yep. I just split the case and all 4are there. They are tiny, less than 1mm diameter

 

Sent from my moto X

[Venturous Randy]

Heather, you need to get a good feel for how everything works before you take the gearsets out, or at least apart. look to see how much the second gear dogs engage and also look at that fork and see if it has been scored on the tips on one side and in the "U" section on the other, as this will indicate if the fork is bent. If you have already removed the gearset's, practice putting them back in and putting the bottom half on. You will be glad you did later when you are trying to put it together when you have sealer smeared on it.

RandyA

Edited June 3, 2014 by Venturous Randy

[Barrycuda]

It is not a bearing retainer pin, they are far smaller than size of found pin.

There are no needle bearings in block near this size.

It is a shifter pin.

Gary

 

Is there anything this guy DOESN'T know??.

[Marcarl]

Is there anything this guy DOESN'T know??.

Yep!!! he's just not quite sure yet as to how fast a Spyder is,,, I think:think:

[pmelah]

Yep!!! he's just not quite sure yet as to how fast a Spyder is,,, I think:think:

 

sounds like Tweety just got chalanged :stirthepot::stirthepot:and i think Tweety is :rotf::rotf:

[Marcarl]

sounds like Tweety just got chalanged :stirthepot::stirthepot:and i think Tweety is :rotf::rotf:

Nah,,, Tweety is just sitting thinking,,, let me at him, let me at him,, or is it a her,, well in that case, she's not going!!!