Front Sprocket Nut is impossible - Page 2 - ZX6R Forum
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post #16 of 23 Old 01-16-2018, 01:26 PM
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I Ride: 2006 Ninja zx6r, 2008 Ninja 250R, 1986 Ninja 250R
As many have posted here...impact gun, bike in neutral and rear-wheel blocked and locked in place... An old veteran mechanic a long time ago taught me a using forward force or first tightening then loosening will break the nut or bolt has worked for me 9 times out of 10 in most all of my mechanical endeavor's!
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post #17 of 23 Old 01-16-2018, 08:11 PM
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^^ interesting. I learned something today. Will give that a shot, next time I'm stuck.


I was advised to buy a 3' Harbor Freight 1/2" breaker bar, and a 6 point socket. By this website's membership. Haven't been steered wrong yet.

With the bike on the side stand, my son sitting on the bike engaging the rear brake as hard as he could, in neutral, I could set the breaker bar so it pointed forward, and I could stand on that bar. A couple of gentle bounces on the tip of the bar with my 210 lbs, and the nut broke free..... once I flattened the lock washer.

"Basic stuff fellas. Use your head for something other than to break your next fall."

Words to live by

Last edited by RJ2112; 01-17-2018 at 03:17 AM.
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post #18 of 23 Old 01-16-2018, 08:17 PM
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I am not a fan of using an impact gun on the transmission out put shaft, tbh.

When Kawasaki put the rubber bushings in the cush drive in the rear hub, the point was to reduce sharp impacts to the transmission.... ball bearings beat up their races easily enough that I do what I can to avoid adding to the damage.
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"Basic stuff fellas. Use your head for something other than to break your next fall."

Words to live by
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post #19 of 23 Old 01-16-2018, 09:54 PM
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Originally Posted by streeteg View Post
Trying to change over to a 520 setup and the front sprocket nut on my '16 is impossible to get off. Using a 3/4 inch drive I've probably put 250+ ft/lbs on the thing and nothing. Anyone have any suggestions?
I picked up a cheap $50 impact from harbor freight and had it off in 5 seconds. 10/10 would do again.

Riding since Grade 1
Bikes owned history in order:
1996 Honda Z50R
1971 Honda SL70
1971 Honda SL175
1971 Honda SL350 (Still own)
2014 Kawasaki Ninja 300 SE
2009 Kawasaki Ninja ZX6R (Current)
2016 Kawasaki Z800 (Current)
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post #20 of 23 Old 01-17-2018, 03:46 AM
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I used a big pneumatic impact. Kawasaki were real jerks when they put that thing on.
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post #21 of 23 Old 01-30-2018, 09:02 AM
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Location: Pittsburgh, Pennsylvania
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I Ride: 2013 ZX6R
There have been multiple topics on this, including one I made. I gave it a heck of a try numerous times, with number tools including an impact wrench. After all that, the nut still wouldn't budge. I had to load it up into the back of my truck, and drive it to the shop I usually deal with about 35 minutes away. The mechanic came out with his impact wrench and had it off in about 1 second. That thing is a bear.

Funny, I just changed my sprockets on my 07 Gsxr that were never modified and didn't have an issue at all.

Racefit: Not for everybody.....

Last edited by RoidRageFool; 01-30-2018 at 12:31 PM.
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post #22 of 23 Old 01-30-2018, 09:38 AM
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Mine was also terrible but I don't remember how the hell I got it off.

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Need moar dicks in muh facehole!!!!!
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post #23 of 23 Old 01-30-2018, 01:53 PM
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Take a look at my thread about the matter.
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