Also could this be the wrong grease for the final dive splines

 

Specs call for a moly grease. There's several out there. Just use one the states it has moly in it. Honda used to make a moly grease that almost everyone used, but was discontinued.

 

A buddy just brought me over this

 

Yep, you are good.

 

UPDATE!!!! IT WAS THE GEAR OIL IN THE FINAL DRIVE!!! I ACCIDENTALY PUT 75-90W IN IT. CHANGED FLUID AND THE NOISE STOPPED.I have a 2008 V star 1100 classic and recently noticed a whining noise on deceleration. Seems to be coming from the left side of the bike. I am aware of the mid shaft nut issue and have checked that multiple times and even slightly tapped on the nut with a screwdriver to see if it moved and it did not. There is 2 or 3 threads showing still passed the nut. Any ideas or suggestions would be appreciated. I did the gear oil and engine oil before riding season.

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I found this thread above 👆 and this guy had the same issue and used the same fluid I did. I wonder if this is my problem? Thoughts

 

Chasing the decel wine everything is looking good with the mid shaft nut

 

 

Would yall call this staked enough or go around the whole nut?

 

Swing arm is out and the middle shaft is tight and staked. Gonna go around the nut for safety measures. So I still gotta figure out what the deceleration whine is once this part is put back together.

 

Is noise coming from front or rear gear set?

 

I was assuming the rear but I could be wrong. Someone mentioned clutch basket whine. ? The mid shaft is good so idk at this point

 

If that's your bike in the video, sure sounds like gear whine to me.

The whine you hear from a spiral bevel gear set is the sound of the teeth engaging and disengaging, and the frequency will be proportional to the rpms, and generally much higher than the frequency coming from a drive shaft issue.

Spiral bevel gears will whine because:
- there is too much axial clearance,
- bearings are worn
- gears are worn
- lubrication is inadequate

Besides properly filling the rear drive housing with the correct lubricant, if you have any reason to think that the gearsets have been disassembled since they left the factory, they may have been reassembled incorrectly. Individual sets of gears are matched using different thickness shims. Here's the diagram for the rear angle gears: You can see that various different thicknesses of shims are available.

If, some mechanic was to rebuild a gearset using a one replacement gear, for example, the original shims would no longer be appropriate. Similarly, if there were two shims present, but one got left off in a reassembly, the clearance would be excessive. Gears want to be held in precise alignment, with some, but minimal axial clearance for each gear in the set. Same goes for the front set.

I'd want to be sure which end the whine was coming from, so as to not be needlessly "spinning my gears". This is where not having a pillion seat for an extra set of ears, is a big drawback. Maybe you can rig up a microphone?

The lubricant is far easier, so I'd start there.

 

If that's your bike in the video, sure sounds like gear whine to me.

The whine you hear from a spiral bevel gear set is the sound of the teeth engaging and disengaging, and the frequency will be proportional to the rpms, and generally much higher than the frequency coming from a drive shaft issue.

Spiral bevel gears will whine because:
- there is too much axial clearance,
- bearings are worn
- gears are worn
- lubrication is inadequate

Besides properly filling the rear drive housing with the correct lubricant, if you have any reason to think that the gearsets have been disassembled since they left the factory, they may have been reassembled incorrectly. Individual sets of gears are matched using different thickness shims. Here's the diagram for the rear angle gears: You can see that various different thicknesses of shims are available.
View attachment 143973

If, some mechanic was to rebuild a gearset using a one replacement gear, for example, the original shims would no longer be appropriate. Similarly, if there were two shims present, but one got left off in a reassembly, the clearance would be excessive. Gears want to be held in precise alignment, with some, but minimal axial clearance for each gear in the set. Same goes for the front set.

I'd want to be sure which end the whine was coming from, so as to not be needlessly "spinning my gears". This is where not having a pillion seat for an extra set of ears, is a big drawback. Maybe you can rig up a microphone?

The lubricant is far easier, so I'd start there.

So you think it’s the differential? It probably didn’t have enough oil when I drained it it only had 6oz and very dirty. Yes that’s my bike in the video

 

I think it's one of the two sets of right angle, spiral bevel gears.

You won't catch me calling the rear set of gears and their housing in the wheel hub, a "differential" though. That name means something very specific, which is based on "difference". With only one drive wheel, don't need a difference, and shouldn't call it a differential, cause it isn't.

 

I think it's one of the two sets of right angle, spiral bevel gears.

You won't catch me calling the rear set of gears and their housing in the wheel hub, a "differential" though. That name means something very specific, which is based on "difference". With only one drive wheel, don't need a difference, and shouldn't call it a differential, cause it isn't.

Ok the final drive do you think it’s bad?