Motorised bike bucking bar too far in which causes the clutch not to work please help

[Karl Snarl]

No they are fine when I adjust the flower nut it either stops rubbing or not and it extends the bucking bar a bit only and you can disengage or engage the clutch

You may have broken the mandrel.

 

[DieselTech]

Will the clutch preload have any affect on bucking bar? The internal preload adjustment? I'm kinda curious because I've yet to adjust it.

 

[Sajadsd]

You lost the bucking bar ball, I believe it's a 5/16" or 8mm ball bearing I believe.

No I didn’t it’s in there

 

[Sajadsd]

You may have broken the mandrel.

What is that may I ask?... and is there any fix?

 

[Sajadsd]

the engines a month old

Do you remember having to adjust the clutch? I'm wondering if the clutch pads are worn badly.M

 

[Sajadsd]

Needs a clutch adjustment I would say.

I adjusted it I tightened and loosened the flower nut back and forth nothing. All it did was push out the bucking bar a bit only. I’m really confused I’ve looked all over for answers

 

[DieselTech]

Will the clutch preload have any affect on bucking bar? The internal preload adjustment? I'm kinda curious because I've yet to adjust it

If internal preload was light/loose, wouldn't that cause the bucking bar & ball to be deep in the clutch shaft bore?

 

[Karl Snarl]

I adjusted it I tightened and loosened the flower nut back and forth nothing. All it did was push out the bucking bar a bit only. I’m really confused I’ve looked all over for answers

If internal preload was light/loose, wouldn't that cause the bucking bar & ball to be deep in the clutch shaft bore?

The mandrel is connected to the shaft through a pin, that is preloaded with the spring. If the pin shears or bends, no clutch. If the mandrel snaps, no clutch. It may move a little as parts smash into each other though. An the pin on the mandrel, if it goes, the buck bar will go in further.

 

[DieselTech]

The mandrel is connected to the shaft through a pin, that is preloaded with the spring. If the pin shears or bends, no clutch. If the mandrel snaps, no clutch. It may move a little as parts smash into each other though. An the pin on the mandrel, if it goes, the buck bar will go in further.

Ok I remember how there setup now, I bet your right. Either the pin fell out or broke allowing the bucking bar & ball to go deeper in clutch shaft bore. Resulting in no clutch.

 

[Karl Snarl]

My best guess is on the pin got bent, or fell out.