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Rear Pulley Wobble Fix (Read 1995 times)
Theduderino
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Re: Rear Pulley Wobble Fix
Reply #135 - 12/30/21 at 11:15:15
 
OK, I was getting worried. Lol. Because it’s working out great I didn’t want to change anything! Still wondering why my bike is run best for the 35 pilot 158 Main
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2000 Savage LS650P. Bobber kit, PWK CARB, air box mod. Rear bearing/spacer mod..

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edgwoodri
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Re: Rear Pulley Wobble Fix
Reply #136 - 12/31/21 at 04:41:30
 
Could you make and sell this spacer with the modification?


DragBikeMike wrote on 07/01/19 at 00:07:39:
This is a sketch of the modified spacer.

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Armen
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Re: Rear Pulley Wobble Fix
Reply #137 - 12/31/21 at 06:18:07
 
I have the modified stock spacer (cut down, no added shoulder) in stock. $30 includes shipping in the US. You have to send your old one to me.
-Armen
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ohiomoto
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Re: Rear Pulley Wobble Fix
Reply #138 - 12/31/21 at 07:49:50
 
Armen, how much for a modified space with extra holes drilled into it?  

I'm trying to decide if I should do that or just let a pound of air out of my tire.

Grin

PS, When do we get a build thread or at least some more pictures of your bike?
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Armen
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Re: Rear Pulley Wobble Fix
Reply #139 - 12/31/21 at 22:20:19
 
Ohio Moto asked:
how much for a modified space with extra holes drilled into it?  

I can make almost anything you can draw on the back of a large check Smiley
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Armen
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Re: Rear Pulley Wobble Fix
Reply #140 - 12/31/21 at 22:21:20
 
Ohio Moto asked:
When do we get a build thread or at least some more pictures of your bike?

I posted a bunch of pics a while ago. Not sure where to find them on the forum. I can dig them up and repost if you like.
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Theduderino
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Re: Rear Pulley Wobble Fix
Reply #141 - 01/01/22 at 08:43:19
 
Sounds like they let it go without adjusting the belt to the belt was constantly riding heavy on one side
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2000 Savage LS650P. Bobber kit, PWK CARB, air box mod. Rear bearing/spacer mod..

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Dave
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Re: Rear Pulley Wobble Fix
Reply #142 - 01/01/22 at 10:03:57
 
Theduderino wrote on 01/01/22 at 08:43:19:
Sounds like they let it go without adjusting the belt to the belt was constantly riding heavy on one side


Who's bike are you talking about?

The sad fact is that the original single row bearing in the pulley hub eventually becomes worn, and the result is that the belt tension pulls the rear pulley crooked in relation to the rear wheel.  You really can't "adjust" the pulley to be straight without making your rear wheel crooked.

The test is to grab your rear pulley and see if you can wobble it (not rotate it) - if you have play and can wobble the pulley....then your rear bearing is worn and it should be replaced.  Replacing it with a single row bearing will work for a while - but a double row bearing works much better!
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Re: Rear Pulley Wobble Fix
Reply #143 - 01/08/22 at 16:37:44
 
OK.....I had an extra hour today.  In fact I have pretty much been in the garage all week long when I could stay awake.  Deb and I both got Covid and we have been isolating all week.  For us it was like having a really bad cold with a stuffy nose and head, an ON/OFF fever for 1 day, and a mild headache and lack of energy.  Wednesday was my worst day for energy and I took a nap every 2 hours! It took just about a week for us to get through it......we really had pretty mild symptoms and it was just inconvenient and tedious getting through it.

So......now that I am nearly normal again I was able to take an hour at the lathe and make my own aluminum spacer.  I didn't taper both ends like Armen.....I just tapered it enough to match the OD of the original spacer and left the bearing end as large as the inner race of the pulley hub bearing.
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Armen
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Re: Rear Pulley Wobble Fix
Reply #144 - 01/08/22 at 21:14:46
 
Nice!
Glad you are feeling better. Covid sucks. Did you get the shots?
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DragBikeMike
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Re: Rear Pulley Wobble Fix
Reply #145 - 04/02/22 at 12:11:30
 
I recently had to change my rear tire, so I took the opportunity to inspect the duplex bearing.  I installed it at 3500 miles and the odometer is now reading just over 27,000.  So, the bearing has about 23,500 miles on it.

It still looks great.  It has a little rust here and there but mostly looks the same as it did when I installed it.
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23600Miles_Lookin_Good.jpg

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DragBikeMike
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Re: Rear Pulley Wobble Fix
Reply #146 - 04/02/22 at 12:14:50
 
Pulley wobble hasn't changed a bit.  It's still exactly .007".  That says a lot for the Chinese bearing.  I guess my concern was unwarranted.  I checked the rotation when the hub was off and it's smooth as silk.  This modification looks like a keeper.
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23600__Miles__007_Wobble2.jpg

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ohiomoto
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Re: Rear Pulley Wobble Fix
Reply #147 - 04/02/22 at 19:22:06
 
DMB,  

Kudos on the great mod. But I have a question.  

How the heck do you get that many miles on your bike with all of the downtimes for experiments?!!!!
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DragBikeMike
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Re: Rear Pulley Wobble Fix
Reply #148 - 04/03/22 at 17:46:31
 
Thanks Ohio.  I have a spare engine and a ton of spare parts.  It allows me to keep the bike operational when I make a big repair or do a mod.  That way I can keep testing things and learning.

I am retired and I live in a place with a warm climate.  I can ride all year round.  I just love tinkering with the thing.  Learn something new every day.  Also have the good fortune of being on this forum where everyone is so willing to share.  Sweet deal all the way around.

I'm kinda in the long-haul test mode now.  Pretty much finished up with squeezing power out of the engine, so now I want to see how well the various setups hold up.  That mandates that I ride more often and go for longer distances.  I usually can do 80 to 120 miles a day.  It's especially nice in the morning.  I cruise along the ocean and enjoy life.

Cool
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Ruttly
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Re: Rear Pulley Wobble Fix
Reply #149 - 05/26/23 at 10:02:21
 
This upgrade is a must , belt or chain , keeps your pulley/sprocket running true. The stock bearing is ok but this setup is as good as it gets. Every savage should have this upgrade.

do it !

two cent
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