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  #1  
Unread 02-03-2013, 03:55 PM
kiwirux kiwirux is offline
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Default 250 LC rear wheel dampers

hi all. at the Island Classic i broke a back wheel on the 250. the rear bearing mount looks like it has broken and moves around. it seems the bearing mount is cast into the wheel and it has worked loose. i use the same 250 wheels on the 250 and 350.
my problem is i need to remove the dampers on my spare wheel and replace them. i have sourced some new dampers but need advice on how to drive out the old dampers. there is four small holes on the brake drum side of the wheel but it is difficult to get a drift in to drive out the old damper. maybe i will have to drive them out by destroying them?
any clues from all the experts? Alternatively, any advice on hubs that will fit the RDLC? i have a hub for the front which i think came off an XS650 Yamaha. any advice for the rear? drum or disc doesn't worry me.
thanks in anticipation.
rux.
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  #2  
Unread 02-04-2013, 02:07 PM
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I have had the same thing with one of my 250 rims, the bearing hub is a press fit into the wheel and once loose they are not worth trying to fix IMO. This particular wheel has had the dampers replaced by someone else and I noticed that they had drilled the holes to a larger size from the brake drum side to allow them to drift out the dampers. it is critical that the dampers (on the 250 wheel) are installed evenly into the wheel or you will get very bad sprocket run out.
In my case the wheel went in the bin.
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  #3  
Unread 02-05-2013, 08:58 AM
kiwirux kiwirux is offline
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thanks DJ. it looks like i will have to junk the wheel. i have found a complete 350 wheel to use. it will do until i can find some hubs and rims to replace all the wheels with spoked rims. in the meantime i still need to replace the dampers in the 250 wheel so looks like extreme force and heat may be necessary.
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  #4  
Unread 02-05-2013, 10:52 AM
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Twinshock750 Twinshock750 is offline
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Quote:
Originally Posted by kiwirux View Post
hi all. at the Island Classic i broke a back wheel on the 250. the rear bearing mount looks like it has broken and moves around. it seems the bearing mount is cast into the wheel and it has worked loose. i use the same 250 wheels on the 250 and 350.
my problem is i need to remove the dampers on my spare wheel and replace them. i have sourced some new dampers but need advice on how to drive out the old dampers. there is four small holes on the brake drum side of the wheel but it is difficult to get a drift in to drive out the old damper. maybe i will have to drive them out by destroying them?
any clues from all the experts? Alternatively, any advice on hubs that will fit the RDLC? i have a hub for the front which i think came off an XS650 Yamaha. any advice for the rear? drum or disc doesn't worry me.
thanks in anticipation.
rux.
I've seen GB500TT Honda used. Lighter than RD350 aircooled drums!
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  #5  
Unread 02-21-2013, 09:14 PM
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tzeggy14 tzeggy14 is offline
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.
My memory must be failing me...

I could have sworn it was only the 350LC wheels that ran the dampers, not the 250.

Mind you, I haven't touched an LC in probably 13 years or more.
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  #6  
Unread 02-21-2013, 11:52 PM
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The 350LC has the bigger cush drive dampers whereas the 250LC has smaller ones pressed into the hub.

like this

https://www.google.com.au/url?sa=i&r...61537042301678
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  #7  
Unread 03-03-2013, 07:49 AM
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tzeggy14 tzeggy14 is offline
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.
Ah, ok.

Thanks.
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Check out the 350 page book I wrote a few years back covering every Yamaha TD,TR,TA and TZ made between 1959 and 1982 by clicking here:
http://www.tz350.net/yamaha_two_stro...orcycle s.htm
.
NOTE: There are now a handful of A5 sized copies available for sale once again. Email me at tzeggy14@yahoo.com.au Be quick!
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  #8  
Unread 03-03-2013, 12:03 PM
Jools Jools is offline
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Rex

I may be able to help you out with a pair of newly built spoked rims.
RD400 rear with disc and a front using a NOS TZ250/350 hub.

They were both rebuilt (at great expense) and remain unused. I also have the caliper back plate etc for the rear.

send me a PM if interested

or failing that I have a pair of Astralites.........

Jools
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  #9  
Unread 03-03-2013, 03:59 PM
Yammit Yammit is offline
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Quote:
Originally Posted by Jools View Post
Rex

I may be able to help you out with a pair of newly built spoked rims.
RD400 rear with disc and a front using a NOS TZ250/350 hub.

They were both rebuilt (at great expense) and remain unused. I also have the caliper back plate etc for the rear.

send me a PM if interested

or failing that I have a pair of Astralites.........

Jools
jools what size are the Astralights . could be just what I AM LOOKING FOR

Cheers John.L.
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  #10  
Unread 03-04-2013, 10:04 AM
Jools Jools is offline
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Bladdy Hell, everyone is after them........

I have two sets one black pair & one gold pair but will keep one set if not both. They are the earlier type & I can't remember the sizes off hand now.
I got them for projects that are shelved at the moment.

Apparently, according to Higgsy, they are making them again. $2000 landed in Oz!! 17" or 18"
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