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sprocket issue
- what is going on?
started by MX4life
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June 18th 2010 at 9:15 PM
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MX4life
lovin' the 2 stroke
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139 Posts 
Group: Members
Member Since: June 18th 2008
Location: Oshawa, Ontario, Canada
Current Dirtbike: 02 CR250/86 XR100
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I put a bran new 49 tooth white brothers aluminum sprocket on my bike so i took a link out of the chain and adjusted it. The chain was perfect after i tightened the axel so i gave it a spin and the chain got very tight for no apparent reason 
It happens every time i adjust it, anyone know whats going on here? The package the sprocket was in listed a varity of bikes you could use it on and mine was one of them.
Heres a picture of after i spun the tire, the chain doesnt even sit on the sprocket properly.
The sprocket is a white brothers 49 tooth groovlight and the serial number you see there is 75-11349MAG, whatever that means...
2002 Honda CR250R
1986 Honda XR100R
2002 Honda CR125R(SOLD)
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June 19th 2010 at 1:32 AM
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Savage-CR
Savage
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153 Posts
Group: Members
Member Since: November 26th 2009
Current Dirtbike: I change this too much
Sponsors: Tosca Banquet Hall
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From me looking at the pictures it looks as if the chain is stretched out far enough that it won't sit on the sprocket properly.
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June 19th 2010 at 12:41 PM
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Dekk
Above Average Member
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657 Posts 
Group: Members
Member Since: June 18th 2008
Location: Hawarden, Iowa, USA
Current Dirtbike: Kawasaki KX250F
Race Number: 25
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By a new chain. When your sprocket gets bad you should buy a new front and back as well as a new chain. Otherwise the old chain will just tear up that brand new sprocket.
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June 19th 2010 at 4:00 PM
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MX4life
lovin' the 2 stroke
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139 Posts
Group: Members
Member Since: June 18th 2008
Location: Oshawa, Ontario, Canada
Current Dirtbike: 02 CR250/86 XR100
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Quote originally posted by Savage-CR
From me looking at the pictures it looks as if the chain is stretched out far enough that it won't sit on the sprocket properly.
thats what i thought to but i can push it down and it will fit in the teeth fine.
2002 Honda CR250R
1986 Honda XR100R
2002 Honda CR125R(SOLD)
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June 19th 2010 at 9:52 PM
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edmonster
to fat to 50 but doing it anyways!
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196 Posts
Group: Members
Member Since: June 22nd 2008
Location: Ely, MN
Current Dirtbike: custom pitbike
Race Number: not needed
Sponsors: dont need any
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you need a new chain
50cc's of mayhem
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June 20th 2010 at 11:56 AM
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Kawi_Rider_316
Team Not Even Scared
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620 Posts
Group: Members
Member Since: July 11th 2008
Location: Ocheyedan, Ia, USA
Current Dirtbike: Kx 250F
Race Number: 316
Sponsors: Spencer Motorsports
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New chain. But also what was your old sprocket? If you moved the tire forward, you may have gone to far and the teeth from the sprocket could be hitting the metal part on your chain guide.
"Jump for show, Corner for dough"
"In ball and stick sports they give you the balls, In Motocross you have to bring your own"
Sponsors:
Glens Sport Center, FC MODS, MSR, Sunline, Tag, Filtron, Six Six One, Steel Mx, Dunlop,
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June 20th 2010 at 2:13 PM
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MX4life
lovin' the 2 stroke
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139 Posts
Group: Members
Member Since: June 18th 2008
Location: Oshawa, Ontario, Canada
Current Dirtbike: 02 CR250/86 XR100
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Quote originally posted by Kawi_Rider_316
New chain. But also what was your old sprocket? If you moved the tire forward, you may have gone to far and the teeth from the sprocket could be hitting the metal part on your chain guide.
Good point, the old sprocket was 50T this one is 49T
2002 Honda CR250R
1986 Honda XR100R
2002 Honda CR125R(SOLD)
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June 20th 2010 at 3:26 PM
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Kawi_Rider_316
Team Not Even Scared
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620 Posts
Group: Members
Member Since: July 11th 2008
Location: Ocheyedan, Ia, USA
Current Dirtbike: Kx 250F
Race Number: 316
Sponsors: Spencer Motorsports
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I would recomend checking that. Let me know what you find
"Jump for show, Corner for dough"
"In ball and stick sports they give you the balls, In Motocross you have to bring your own"
Sponsors:
Glens Sport Center, FC MODS, MSR, Sunline, Tag, Filtron, Six Six One, Steel Mx, Dunlop,
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June 20th 2010 at 10:36 PM
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MX4life
lovin' the 2 stroke
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139 Posts
Group: Members
Member Since: June 18th 2008
Location: Oshawa, Ontario, Canada
Current Dirtbike: 02 CR250/86 XR100
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Quote originally posted by Kawi_Rider_316
I would recomend checking that. Let me know what you find
doesn't look like anythings rubbing, the chain is still about an inch from touching the guide.
2002 Honda CR250R
1986 Honda XR100R
2002 Honda CR125R(SOLD)
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June 20th 2010 at 11:28 PM
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Kawi_Rider_316
Team Not Even Scared
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620 Posts
Group: Members
Member Since: July 11th 2008
Location: Ocheyedan, Ia, USA
Current Dirtbike: Kx 250F
Race Number: 316
Sponsors: Spencer Motorsports
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Is the sprocket on the right way? Try to loosen your chain up a little by moving your tire forward.
"Jump for show, Corner for dough"
"In ball and stick sports they give you the balls, In Motocross you have to bring your own"
Sponsors:
Glens Sport Center, FC MODS, MSR, Sunline, Tag, Filtron, Six Six One, Steel Mx, Dunlop,
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June 22nd 2010 at 8:49 PM
[ Modified June 22nd 2010 at 8:50 PM
]
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MX4life
lovin' the 2 stroke
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139 Posts
Group: Members
Member Since: June 18th 2008
Location: Oshawa, Ontario, Canada
Current Dirtbike: 02 CR250/86 XR100
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yes the sprocket is on the right way and i've tryed adjusting the chain, everytime i loosen it and spin the wheel it gets tight again. Im just going to get a new chain and front sprocket.
2002 Honda CR250R
1986 Honda XR100R
2002 Honda CR125R(SOLD)
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June 22nd 2010 at 10:06 PM
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Kawi_Rider_316
Team Not Even Scared
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620 Posts
Group: Members
Member Since: July 11th 2008
Location: Ocheyedan, Ia, USA
Current Dirtbike: Kx 250F
Race Number: 316
Sponsors: Spencer Motorsports
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Yea thats a good idea anyway. That way they wear even.
"Jump for show, Corner for dough"
"In ball and stick sports they give you the balls, In Motocross you have to bring your own"
Sponsors:
Glens Sport Center, FC MODS, MSR, Sunline, Tag, Filtron, Six Six One, Steel Mx, Dunlop,
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June 23rd 2010 at 2:00 PM
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MX4life
lovin' the 2 stroke
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139 Posts
Group: Members
Member Since: June 18th 2008
Location: Oshawa, Ontario, Canada
Current Dirtbike: 02 CR250/86 XR100
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Quote originally posted by Kawi_Rider_316
Yea thats a good idea anyway. That way they wear even.
Yup, thanks for the input guys!
2002 Honda CR250R
1986 Honda XR100R
2002 Honda CR125R(SOLD)
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July 1st 2010 at 11:20 PM
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colinyz
Starting Member
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1 Posts
Group: Members
Member Since: June 23rd 2010
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