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Author Topic: Counter sprocket nut  (Read 6348 times)

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Offline pippin07

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Counter sprocket nut
« on: June 24, 2013, 04:56:04 PM »
Hi all looking for a counter sprocket nut for my 87 kx 500 does anyone know where i can get one thet seem a little hard to locate i also know a kdx 400 one will fit as it has the same thread size as that is what i had on it when the first one came off  cheers all.
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Offline sandblaster

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Re: Counter sprocket nut
« Reply #1 on: June 24, 2013, 05:00:57 PM »
These will all fit:
1974 KX250 (78-79)
1975 KX250-A (78-79)
1976 KX250-A3 (78-79)
1978 KX250-A4 (78-79)
1979 KDX400-A1 KDX400
1979 KX250-A5 (78-79)
1980 KDX400-A2 KDX400
1980 KX420-A1 KX420
1981 KDX420-B1 KDX420
1981 KX420-A2 KX420
1982 KDX450-A1 KDX450
1983 KX500-A1 KX500 ('83 A1)
1983 KX500-A1 KX500 ('84 A2)
1984 KX500-A2 KX500 ('83 A1)
1984 KX500-A2 KX500 ('84 A2)
1985 KX500-B1 KX500
1986 KX500-B2 KX500
1987 KX500-C1 KX500
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline El Snorro

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Re: Counter sprocket nut
« Reply #2 on: June 24, 2013, 07:16:40 PM »
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Offline sandblaster

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Re: Counter sprocket nut
« Reply #3 on: June 25, 2013, 02:23:49 AM »
El Snorro

I figured out the thread is M24x1.0

And a steering stem nut of a honda CR85 2003-2007 is M24x1.0
http://www.cmsnl.com/honda-cr85r-2003-canada_model2964/nut-steering-stem_90304425000/

I will order one and post here if it fits.
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The four stroke engine: That's one stroke for producing power and three for wearing the engine out.

Offline don46

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Re: Counter sprocket nut
« Reply #4 on: June 25, 2013, 02:38:30 AM »
keep in mind the steering stem nut  may be Aluminum. Is there a lock ring on the output shaft to prevent the nut from coming off?  if so it wouldn't have to be very tight to hold the sprocket in place. The new 450's use a nut and a lock ring to secure it, from the factory they must use a 3/4" impact to install it cause that's what it took to get it off.
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Offline El Snorro

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Re: Counter sprocket nut
« Reply #5 on: June 25, 2013, 03:03:32 AM »
Quote from: don46 on June 25, 2013, 02:38:30 AM
keep in mind the steering stem nut  may be Aluminum. Is there a lock ring on the output shaft to prevent the nut from coming off?  if so it wouldn't have to be very tight to hold the sprocket in place. The new 450's use a nut and a lock ring to secure it, from the factory they must use a 3/4" impact to install it cause that's what it took to get it off.

The newer KX500's use only a circlip so it will be no problem i gues.
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Offline El Snorro

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Re: Counter sprocket nut
« Reply #6 on: August 18, 2013, 09:13:07 PM »
Fits like a dream ;)

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Offline kkvslayer

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Re: Counter sprocket nut
« Reply #7 on: August 19, 2013, 04:02:10 AM »
Quote from: El Snorro on June 25, 2013, 03:03:32 AM
Quote from: don46 on June 25, 2013, 02:38:30 AM
keep in mind the steering stem nut  may be Aluminum. Is there a lock ring on the output shaft to prevent the nut from coming off?  if so it wouldn't have to be very tight to hold the sprocket in place. The new 450's use a nut and a lock ring to secure it, from the factory they must use a 3/4" impact to install it cause that's what it took to get it off.

The newer KX500's use only a circlip so it will be no problem i gues.
the newer shafts that use the circlip probably have a deeper groove cut for the circlip,I'm sure the lock tab washer can still be found,probably 99 cents for your peace of mind
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