Old sprocket, time for a new one?

  • chupinator
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Old sprocket, time for a new one?

20 Mar 2009 23:16
#273844
I don't know too much about motorcycle sprockets, but this just doesn't look right. How often do you change your chain and sprockets? When I took my rear wheel off there was probably an inch and a half of chain play, with the adjuster maxed out. I think its the original chain and sprockets with about 16,000 miles and 32 years. I'd say its about time.
1976 KZ900 A4

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  • smithgpz
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Re: Old sprocket, time for a new one?

21 Mar 2009 01:17
#273861
that is way past due for replacement.always replace sprockets and chain as a set.

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  • chupinator
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Re: Old sprocket, time for a new one?

21 Mar 2009 01:31
#273863
Damn, I was just looking for an excuse to keep that $120 in my pocket. Looks like I need to deliver more pizza.
1976 KZ900 A4

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  • kpier998
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Re: Old sprocket, time for a new one?

21 Mar 2009 04:48
#273866
A good welder could fix that sprocket for you no problem. Or you can just use JB Weld. I don't see why you want to waste a perfectly good piece of metal.

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  • mumbles
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Re: Old sprocket, time for a new one?

21 Mar 2009 05:21
#273867
Judging from the picture my old sprocket probably had about 10k miles left on her.:lol:
2001 KZ1000 Police
1998 Vulcan 800

Houston, Tx

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  • Bluemeanie
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Re: Old sprocket, time for a new one?

21 Mar 2009 05:41
#273869
Pop the clutch a couple times and you could smooth that right out!! :woohoo:
1980 KZ650F1, Bought new out the door for $2,162.98!

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  • Old Man Rock
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Re: Old sprocket, time for a new one?

21 Mar 2009 07:22
#273880
A good welder could fix that sprocket for you no problem. Or you can just use JB Weld.

:ohmy: :huh: :blink: :blink: :blink: :blink:

Please say you're joking...right????
:laugh: :laugh: :laugh: :laugh: :laugh:

Deliver more pizzas to buy new chain & rear sprocket....

Question, hows the front counter sprocket look?
Chances are that's toast as well...

Deliver even more pizzas to buy new chain & rear sprocket.... & front counter sprocket....
1976 KZ900-A4
MTC 1075cc.
Camshafts: Kawi GPZ-1100 .375 lift
Head: P&P via Larry Cavanaugh
ZX636 suspension
MIKUNI, RS-34'S...
Kerker 4-1, 1.5" comp baffle.
Dyna-S E.I.
Earls 10 row Oil Cooler
Acewell 2802 Series Speedo/Tach
Innovate LC1 Wideband 02 AFR meter

Phoenix, Az

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  • RonKZ650
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Re: Old sprocket, time for a new one?

21 Mar 2009 07:31
#273881
Someone "forgot" to oil the chain on that one. Guys that say no need to oil take note.
321,000 miles on KZ's that I can remember. Not going to see any more.

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  • chupinator
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Re: Old sprocket, time for a new one?

21 Mar 2009 09:41
#273898
Bluemeanie wrote:
Pop the clutch a couple times and you could smooth that right out!! :woohoo:
Yeah, my end of the year burnout did have a nice clunking noise to it. :blink:
1976 KZ900 A4

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  • H2RICK
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Re: Old sprocket, time for a new one?

21 Mar 2009 22:35
#274096
Well, that sprocket in the pic is now #2 on my all-time list of "Bad Sprockets I Have Seen". The top-of-the-list sprocket had "teeth" that were about 2/3 the height of the ones in the pic. The owner of that bike said he had this strange whirring noise when he tried to pull away from a stop.....and had to paddle the bike and feather the clutch until it would finally "catch" and stop whirring.
Chupinator, you've made my day.:laugh: :laugh: :laugh:
KZ650C2 Stock/mint. Goes by "Ace".
H2A Built from a genuine basket case. Yes,it's a hot rod.
GT550A Stock/mint. Pleasant stroker.
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  • trianglelaguna
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Re: Old sprocket, time for a new one?

22 Mar 2009 06:20
#274174
speechless....blind bravery....bet you can never ride again not thinking about you chain....once you know the difference there is no going back....you got a free pass on that one.....really not safe....good luck....live long and prosper!!! without thinking
1976 KZ900
2003 ZX12R
2007 FZ1000
2004 ninja 250R for wife

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  • 650ed
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Re: Old sprocket, time for a new one?

22 Mar 2009 06:45 - 22 Mar 2009 06:50
#274181
Chupinator wrote "I don't know too much about motorcycle sprockets...."

Not trying to take a poke at you, but truer words were never spoken if you honestly aren't sure that this sprocket is shot. Sprockets are suppose to have teeth, yours barely has gums. :laugh: Take a look at a new sprocket. Sprockets should be replaced if there is noticable wear. Be sure to replace both sprockets and the chain together. Be sure to lube the new chain every few hundred miles; my prefered lube is a product called "Chain Wax." With only 16,000 miles it's obvious your chain was not maintained. I replaced mine at 36,000 miles after 25 years and the sprockets looked new compared to the one in the picture. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
Last edit: 22 Mar 2009 06:50 by 650ed.

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