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Author Topic: Rear tire locks up  (Read 282 times)
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Thadius
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« on: August 24, 2018, 09:58:40 AM »

2000 kx125 set up for a while put a new top end and installed a new crank put bike back together, rode bike shifts great no problems but one you cut bike off and start to push it into shop the rear wheel locks up it is in neutral made sure of that, you can roll the bike backwards no problem and tire will spin freely on the stand it has got me scratching my head.
Thadius



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umberto
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« Reply #1 on: August 24, 2018, 04:09:05 PM »

When it locks up, can you pull in the clutch and move it?  Is anything rubbing or making noises when it locks up?
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Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525 - Goliath
2017 KX250F/2004 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144
kxpegger
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« Reply #2 on: August 24, 2018, 04:42:16 PM »

Sounds like it's not staying in neutral? Umberto may be onto something!
« Last Edit: August 24, 2018, 04:44:57 PM by kxpegger » Logged

North Las Vegas

"05" RMZ450, "08" KX500AF "11" KTM 450SX-F "12" KTM 250SX "15" KTM450SX-F
Thadius
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« Reply #3 on: August 24, 2018, 05:19:53 PM »

It will make a clicking noise just before it does it but I don't explain why if freewheels when you push it backwards I would think if it jumped out of neutral it would be the same forward or backwards....
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Thadius
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« Reply #4 on: August 24, 2018, 05:22:02 PM »

And pulling the clutch in does not help either
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umberto
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« Reply #5 on: August 24, 2018, 05:31:35 PM »

It will make a clicking noise just before it does it but I don't explain why if freewheels when you push it backwards I would think if it jumped out of neutral it would be the same forward or backwards....
I can see why this one has your stumped.  It's a really unusual problem.  Just a few more questions for you: When it makes the clicking noise, does the shifter move?  Have you tried locking the wheel up, and then playing with the shifter to see what gear it is in?  When you roll it backwards, does it free it up to go forwards, or does it stay locked up?
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Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525 - Goliath
2017 KX250F/2004 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144
Thadius
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« Reply #6 on: August 24, 2018, 05:49:59 PM »

I will get back to you on that I will try and video what is happening and post it if I can figure out how it may take me a couple of days but thanks for the help
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umberto
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« Reply #7 on: August 25, 2018, 08:55:22 AM »

I will get back to you on that I will try and video what is happening and post it if I can figure out how it may take me a couple of days but thanks for the help
The site won’t host videos, but you can post to YouTube and link using the hyperlink globe.
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Perhaps I have a dirt bike addiction?

03 KX 250/88 KX 525 - Goliath
2017 KX250F/2004 KX250
04 KX 250 - Lunchbox's Bike
05 KX 125/144
kxpegger
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« Reply #8 on: August 25, 2018, 01:23:25 PM »

You might try taking your chain off and see if it still does it. If so, your wheel bearings are wadded up.
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North Las Vegas

"05" RMZ450, "08" KX500AF "11" KTM 450SX-F "12" KTM 250SX "15" KTM450SX-F
Thadius
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« Reply #9 on: August 25, 2018, 02:41:13 PM »

Thanks will let you know the outcome or what other problem I encounter.
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Thadius
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« Reply #10 on: September 09, 2018, 06:55:41 AM »

Ok fellows I want to thank you for the advice and help given but after I tore the bike back down I found that I left a thrust washer out that goes behind the clutch basket while assembling the engine, works like a charm now thanks again!
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kxpegger
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« Reply #11 on: September 09, 2018, 04:31:48 PM »

Glad you got it figured out! I would have never guessed the clutch basket thrust washer!
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North Las Vegas

"05" RMZ450, "08" KX500AF "11" KTM 450SX-F "12" KTM 250SX "15" KTM450SX-F
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