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Motorized Bicycle Trouble Shooting Use this area to post problems that may arise, if you could use some help in figuring out what is wrong with your engine and what needs to be done to achieve top performance.


"bucking bar" fell out of 10 tooth sprocket

Use this area to post problems that may arise, if you could use some help in figuring out what is wrong with your engine and what needs to be done to achieve top performance.


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Old 01-03-2013, 11:25 PM
1dave1 1dave1 is offline
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Default "bucking bar" fell out of 10 tooth sprocket

Hi all,

I was rebuilding my bike today and I took of the crank shaft cover to get access to the sprocket on the engine. I think something called the "bucking bar", a small piece of metal that looks just like this...

http://www.bikeberry.com/engine-kit-...cking-bar.html

I cannot push it all the way in, it only goes in about half way.

Anyone know how to fix???

Thanks a ton

Dave
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Old 01-04-2013, 12:08 AM
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GearNut GearNut is offline
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Default Re: "bucking bar" fell out of 10 tooth sprocket

If it went all the way inside the hollow transmission shaft the clutch release would not be able to work. It is supposed to stick out.
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Old 01-04-2013, 02:14 AM
1dave1 1dave1 is offline
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Default Re: "bucking bar" fell out of 10 tooth sprocket

interesting. The bike worked perfectly and I don't remember having that thing sticking out loosely. I could be totally wrong. Does the bucking bar just rest in that hole ever so slightly?

I'm having issues w/ installing the clutch. Should I put that bucking bar into the crank shaft and then install the clutch? Would that explain why the clutch is not working? What confuses me is that I also have a semi stripped clutch lever and chord so I'm not sure why I dont get the same tension on the clutch.

Thanks for the reply and any help.
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Old 01-04-2013, 10:38 AM
crassius crassius is offline
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Default Re: "bucking bar" fell out of 10 tooth sprocket

When you put it in the hole, it should stick out at least a 1/4 inch. Sometimes it will be a bit further out. There is also an 8mm steel ball behind it in that hole that may sometime fall out.

If you have the clutch off, the spring tension may cause it to stick out further until you get the flower nut to pull a bit on the rod going thru that shaft.
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