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Author Topic: RD400 wheel sprocket... stupid issue  (Read 1034 times)

Offline LazloH

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Re: RD400 wheel sprocket... stupid issue
« Reply #20 on: Apr 20, 2017, 13:17:14 »
74 mm center.

it does actually have the Yamaha logo on it..  so I know I am in the right ballpark.

That JT Sprockets site is killer.  I got these from Dock..  who got them from someone else..  so they were labeled as RD400 but we were never sure.

Worth noting that the sprocket side of the hub got 2 bearings doubled up.   Last piece I really need to find is the damn collar for that side.   the ID of the bearings is larger on that side than it is on the other...  yamaha put a collar in there to reduce it and act as a spacer. (I guess).  so if anyone has one of those little guys floating around, I would be interested.


Clem..   whats the Honda behind your Daytona?    CB160?   (Daytona looks great... btw.)
1963 CA95 Baby Dream

RichArd: now that's not fair. BMW has made a constant design practice of leaving the engine as a distinct and obvious member

Deviant: I have a distinct and obvious member that looks better tucked away.

Offline jimmer

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Re: RD400 wheel sprocket... stupid issue
« Reply #21 on: Apr 20, 2017, 14:10:08 »
Clem- I can't tell from your picture what you are referring to. Can you post a closeup picture? Thanks.
Yamaha Blaster Bike                                                                  Suzuki T500 Titan Twingle

Offline clem

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Re: RD400 wheel sprocket... stupid issue
« Reply #22 on: Apr 20, 2017, 14:28:25 »
Jimmer, a few weeks back I accidentally deleted all of my pics so I no longer have the shots from when restored the rims. I was referring to the spline that runs around the center of the wheel and intersects with the spokes. I didn't notice that in the original picture that was posted. I don't think that is a RD mag at all.

Sent from my SAMSUNG-SM-G920A using DO THE TON mobile app

"After every war there are soldiers who refuse to surrender. To this day there are still thousands who cling to their 30+ year old motorcycles, thinking that the war is still on, refusing to concede that the four-strokes have won"

1972 DS7 http://www.dotheton.com/forum/index.php?topic=45886.msg505995#msg505995
1983 CB550sc bobber http://www.dotheton.com/forum/index.php?topic=30599.30

Offline clem

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Re: RD400 wheel sprocket... stupid issue
« Reply #23 on: Apr 20, 2017, 14:31:04 »
Laz, it is a CB160

Sent from my SAMSUNG-SM-G920A using DO THE TON mobile app

"After every war there are soldiers who refuse to surrender. To this day there are still thousands who cling to their 30+ year old motorcycles, thinking that the war is still on, refusing to concede that the four-strokes have won"

1972 DS7 http://www.dotheton.com/forum/index.php?topic=45886.msg505995#msg505995
1983 CB550sc bobber http://www.dotheton.com/forum/index.php?topic=30599.30

Offline clem

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Re: RD400 wheel sprocket... stupid issue
« Reply #24 on: Apr 20, 2017, 19:19:25 »

Daytona drive side hub.

Sent from my SAMSUNG-SM-G920A using DO THE TON mobile app

"After every war there are soldiers who refuse to surrender. To this day there are still thousands who cling to their 30+ year old motorcycles, thinking that the war is still on, refusing to concede that the four-strokes have won"

1972 DS7 http://www.dotheton.com/forum/index.php?topic=45886.msg505995#msg505995
1983 CB550sc bobber http://www.dotheton.com/forum/index.php?topic=30599.30

Offline jimmer

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Re: RD400 wheel sprocket... stupid issue
« Reply #25 on: Apr 20, 2017, 21:50:56 »
Thanks for taking the time and posting that picture clem. I know I have been working a lot and freel a bit fried out, but I am not seeing anything non standard or different on your wheel.I'm feeling a bit stupid right now!
Yamaha Blaster Bike                                                                  Suzuki T500 Titan Twingle

Offline clem

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Re: RD400 wheel sprocket... stupid issue
« Reply #26 on: Apr 20, 2017, 22:13:14 »
No doubt Jimmer. The Daytona has wider rims than the other 400's and one rim is stamped as tubless but I think thats the only differences.

Sent from my SAMSUNG-SM-G920A using DO THE TON mobile app

"After every war there are soldiers who refuse to surrender. To this day there are still thousands who cling to their 30+ year old motorcycles, thinking that the war is still on, refusing to concede that the four-strokes have won"

1972 DS7 http://www.dotheton.com/forum/index.php?topic=45886.msg505995#msg505995
1983 CB550sc bobber http://www.dotheton.com/forum/index.php?topic=30599.30

Offline teazer

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Re: RD400 wheel sprocket... stupid issue
« Reply #27 on: Apr 25, 2017, 01:05:43 »
Thanks Clem,
Useful info.  I didn't know that the G had a different wheel and sprocket.

Lazloh, did you buy that lathe yet?

Offline bradj

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Re: RD400 wheel sprocket... stupid issue
« Reply #28 on: Apr 25, 2017, 02:38:47 »
Did that wheel come from me ?

Offline teazer

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Re: RD400 wheel sprocket... stupid issue
« Reply #29 on: Apr 25, 2017, 19:01:04 »
Probably Brad. Any idea what Yamaha rear wheel you had with 74mm center?

If a Daytona sprocket fits, that fixes the problem regardless of where it came from.  Right? Or am I missing something?  I see in Clem's picture that his rear wheel is different and I see a wear ring on LazloH's wheel that suggests it was where the sprocket sat and it looks like it will fit and line up.