OzVMX Forum

Marque Remarks => Yamaha => Topic started by: IT400C on October 02, 2012, 05:57:48 pm

Title: What Yamaha Hub is this? (now with image!)
Post by: IT400C on October 02, 2012, 05:57:48 pm

Trying to identify this Yamaha hub for a friend.  Here's the sketch of what he's looking for:

(http://i374.photobucket.com/albums/oo184/IT400C/WhatYamahaHub2-1.jpg)

He thinks it's from a YZ250-490 from around 1980-82.  No code cast into it, and a single rib around the brake side.

Anyone know what it is?  He's looking to buy one.

Thanks, Tony

Title: Re: What Yamaha Hub is this? (now with image!)
Post by: IT400C on October 02, 2012, 06:05:29 pm

Sorry, a few photobucket glitches before...   ;D

Title: Re: What Yamaha Hub is this? (now with image!)
Post by: Nathan S on October 02, 2012, 07:59:33 pm

Any hints on brake diameter?

81 models had big drums compared to 80 and 82+ YZs.

The large spoke diameter suggests a later model than the 81 4V4 hub.

IT490K/L??

Title: Re: What Yamaha Hub is this? (now with image!)
Post by: Ando on October 03, 2012, 05:08:22 am

Looks like a 4V4 to me. The H models are the only ones I am aware of with the single rib. Both the G & J had two ribs.

Title: Re: What Yamaha Hub is this? (now with image!)
Post by: Tahitian_Red on October 24, 2012, 08:12:56 am

Here is an IT490 hub on eBay and it has the single rib.

http://www.ebay.com/itm/1984-Yamaha-490-rear-wheel-tire-hub-center-84-490-/200815626322?hash=item2ec18b4852&item=200815626322&pt=Motorcycles_Parts_Accessories&vxp=mtr (http://www.ebay.com/itm/1984-Yamaha-490-rear-wheel-tire-hub-center-84-490-/200815626322?hash=item2ec18b4852&item=200815626322&pt=Motorcycles_Parts_Accessories&vxp=mtr)