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Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
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  #1  
Old 16 Oct 2010
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Kick starter mechanism damage

What can be a reason for the kickstarter ratchet plate damage?
On a kickstarter mechanism there is a ratchet, which is meshed when kicking and is disengaged after kickstarter lever return to top position. Ratchet is disengaged by a ratchet plate. This small plate is bolted to the crankcase. On my bike this plate was just bent and broken off the crankcase. Ratchet must hit that plate with huge force, which is strange. I checked my friend’s bike engine – but there was only minor wear on a plate and crankcase. On my it was smashed.
Has anyone seen anything similar?

Michal
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Old 16 Oct 2010
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Engine kicking back?
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Old 16 Oct 2010
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How old is the engine?
Is it just wear and tear?
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Old 17 Oct 2010
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Bike is 2008. It’s not worn.
I heard a theory about engine kicking-back. I agree it is possible. But if the engine kick back can damage the engine – then it is a bad design.


Michal
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Old 17 Oct 2010
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Here is a picture of case and plate. Plate is bent

Michal
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Kick starter mechanism damage-p8047036.jpg  

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Old 17 Oct 2010
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Mate.. that's the way it should look like!
Well, besides the casing being broken that is...

On XT600E the stopper mechanism is also bent!
so yeah, it should look similar...

Do you have e-start?


Vando
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Old 17 Oct 2010
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Plate and bolt is bent so badly, that it does not disengage the mechanism. It rattles all the time. The real problem is that the bolt hole is damaged. I weld repaired it – but the plate and bolt bent again. In fact case around bolt is cracked and that is why all is bent.
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