which parts do i need to get to replace the rear wheel bearings? thanks!

Its got a garden variety 6303 bearing ... just call any power transmission place and they'd sell you a pair for $10. Options are 2 SS , 2 PS, 1 SS and 1 PS and no seals. My favorite is 2 PS (2 plastic seals), SS is steel seals. And on the side you are knocking ... aka the outerm remove the seal and knock it in, then install the seal. Better not knock the seal cos it will bend and break.
On that 6303 I am not sure may be 6302 ... whatever it is ... its generic made by 1000 people and better to get that ... NEC or SKF or somethign Koyo or somehting ... whatever it is ... german, or Japanese or somehting.
Cool.
Srinath.

darn it, srinath...tell me what to get from the above picture!  :x

i'm in a total boonies (you've been here). i'm not going to find anything here locally. plus, i have to order other parts too.

Part 14 is the brgs.  

Part Number: 08143-63037
Description: B1 17X47X14 BEA
Price: $10.87

From RonAyers Fiche.

I thought it was 15 ... but being the smartass that i am I had to tell him the theory behind the whole bearing selection and acquisition ...
Now Jetswing ... JC whitney carries bearings, as does many other places even in small towns. Bearings are common parts for various farm machinery and are a common industrial maintenance item. Get its generic number and I'll bet you'd have one in your town's farm store or mail order it ...
Now I will ask werase if I dont find it in my damn wheel that's lying about.
Cool.
Srinath.

Quote from: gsJackPart 14 is the brgs.  

Part Number: 08143-63037
Description: B1 17X47X14 BEA
Price: $10.87

From RonAyers Fiche.

Ha ha ... its a 6303 ... its in the blooming part number ...
BTW Bandit 400 was 6303 and the Katana wheels I have was 6302 ... i dont have GS wheels ... lying about.
BTW aren'r katana wheels interchangeable with GS ... the bearing OD's are off WTF ... ID for the GS bearing is 17mm and the Kat 1s 15
Cool.
Srinath.

OK as per bike bandit ... 2001 GS has a 15X42X13 bearing in the front whihc is a 6302.
http://houseofmotorcycles.bikebandit.com/partsbandit/showschematic~dept_id~724190.asp
Rear is 17X47X14 and that is a 6303. Mystery solved. I couldn't get any readings off the rear wheel of the Kat and the B4 was a rear wheel obviously.
http://houseofmotorcycles.bikebandit.com/partsbandit/showschematic~dept_id~724400.asp
So There. Buy it off JC whitney if you dont have a power transmission place like motion industries or somehting in your area.
Cool.
Srinath.

thanks guys! so part 14 is the wheels bearings (i should have just linstened to gsJack ). so i just need two part 14s.

now...part 15 is also a some bearing that goes inside the sprocket drum?

I think 2 of part 15 ... and JC whitney's part number for that 6303-2RS bearing is AGK024222U. Go to www.jcwmotorcycle.com and get it. $4.99 a piece. BTW you know how to remove/install it right ...
Cool.
Srinath.

Quote from: JetSwingthanks guys! so part 14 is the wheels bearings (i should have just linstened to gsJack ). so i just need two part 14s.

now...part 15 is also a some bearing that goes inside the sprocket drum?

Yes, part 15 is a bearing for the sprocket.  It rides on part 9.  After you pull rear wheel and if you lift off sprocket/drum asssy, the bearing is inside the sprocket/drum assy.  Parts 14 are the wheel bearings.

Yea I messed up ... the rear wheels with chain drive have one in the cush inside which that spacer sits, and 2 in the wheel ... those are the 14's ... however 14's are the 6303's ... so I was just not looking at the numbers on the parts very well ... I just remember last year I bought 6303's or somehting and replaced mine.
Cool.
Srinath.