Wow all that looks terrible.
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What's the seats look like under those valves? If there are no impact marks on the pistons they have to be burnt but they look "chipped" to me.
I can top that one though
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please pop a broken valve and its neighbor out for pic...
The valve could simply be worn out, if you take them off is there a groove worn all around the valve face?Comment
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A popped out poppet
The less damaged valves show a smooth seat. The one under this valve would need to be re-cut for sure.
I measured the valve stem and it is right on spec throughout the length so its still good................
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That valve is burnt. It overheated then a chunk broke off.Ed
To measure is to know.
Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182
Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846
Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf
KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-ResurrectionComment
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Zero compression indeed!Comment
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