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December 22nd, 2011, 12:26 AM
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#1 |
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ninjette.org guru
Name: George
Location: Florida
Join Date: May 2011 Motorcycle(s): 08 Ninja 250r 03 Yamaha R6 (Project bike) Posts: 271
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Ebay lever broke my clutch lever mounting bolt!
So while on my way home from a short ride earlier tonight my clutch lever mounting bolt broke. The lever I have are the ebay levers from China (I think they are "2wheels" or something like that. All I know is that while shifting I started to let the clutch lever out and when I let go I thought it moved forward further than normal. WHen I reached for the lever I realized it was no longer in place. I was able to shift into neutral and pulled to the side of the road. I then searched the road (luckily it wasn't a busy road) and found the bolt. I orginally thought the bolt just came loose or something even though I torqued it down properly. Well the bolt broke completely. Before someone asks yes I did grease the bolt and the levers when I installed them and the bolt still had grease on it when it broke.
The interesting question is that since the mountign bolt is the OEM part did the OEM part fail on its own or did the ebay levers cause the failure?   
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December 22nd, 2011, 12:37 AM
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#2 |
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RIP Alex
Name: Cuong
Location: Houston, TX
Join Date: Apr 2011 Motorcycle(s): '10 250r, '09 265r Posts: A lot.
Blog Entries: 2
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Could be just over torqued or somehow the bike was dropped? Highly doubt the levers were at fault. Get another. Old at the hardware store and all it a day.
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HalfFast Racing Team Serving Greater Houston Area Riders:WFO Riders MotoHouston HPC CMRA Ride Smart Fastline Lone Star Track Days |
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December 22nd, 2011, 12:42 AM
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#3 |
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ninjette.org guru
Name: George
Location: Florida
Join Date: May 2011 Motorcycle(s): 08 Ninja 250r 03 Yamaha R6 (Project bike) Posts: 271
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The bike was dropped back when I had the stock levers on. I imagine the bolt could have had hidden damage. Just wanted to see what other peoples' input was and to give everyone a heads up on what COULD happen.
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December 22nd, 2011, 01:01 AM
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#4 |
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Ambrosia.
Name: Jaymie
Location: Oahu, Hawaii
Join Date: Aug 2011 Motorcycle(s): 1974 Honda CB550K0 W.I.P. Posts: A lot.
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The bolt weakening from a previous drop sounds more likely than an ebay lever damaging the bolt.
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Life's better on the Mountain. |
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December 22nd, 2011, 03:09 AM
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#5 |
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Gear crash test dummy
Name: Max
Location: South Bay (So. Cal)
Join Date: May 2011 Motorcycle(s): 2010 Ninja 250 race bike, 2014 ZX-636r Posts: A lot.
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i have the ebay levers from "The2wheels" and my bolt is....there, functioning...being bolty?
I wouldn't say this was the levers fault. |
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December 22nd, 2011, 05:04 AM
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#6 |
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ninjette.org member
Name: John
Location: Caledonia, Ontario, Canada
Join Date: Jul 2010 Motorcycle(s): Honda, Buell, Kawasaki, Suzuki, Yamaha Posts: 170
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I would lean to your torque method was!
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December 22nd, 2011, 07:08 AM
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#7 |
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ninjette.org sage
Name: Steve
Location: Valdosta GA, US
Join Date: Jul 2011 Motorcycle(s): 2012 Ninja 250, 2006 Ninja ZX6R-636 Posts: 661
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The damage is at the threads. Prior drops or over torque seems like the culprit. In no way would I be blaming the lever for the broken bolt.
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December 22nd, 2011, 07:13 AM
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#8 |
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Long Time Rider
Name: Blue
Location: Charlotte, NC
Join Date: Sep 2010 Motorcycle(s): 2009 Kawasaki Ninja 250R Posts: A lot.
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Bolt failure. The bolt is soft metal with no torque requirement on the small threaded end. It has happened before with others and stock levers.
http://www.ninjette.org/forums/showthread.php?t=57544 http://www.ninjette.org/forums/showt...ad.php?t=57544 http://www.ninjette.org/forums/showthread.php?t=23842 http://forums.ninja250.org/posting.p...&t=69470&tro=1 |
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December 22nd, 2011, 07:22 AM
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#9 |
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CVMA #74 WSMC #750
Name: Nemesis
Location: On the track
Join Date: Oct 2009 Motorcycle(s): All of them Posts: A lot.
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Agree...torque not required and the small thread end is weak. Live & learn.
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