A gal asked my son...

[trbig]

So... no comments from the only person I've seen do this same thing to an XS11?

[petejw]

.........maybe......more likely way over revved and dropped valve spring keepers and the valve beat its way to the other side of piston............whatever the cause, a mood point at best......would think that model should'nt be too hard to find a replacement.....

how does the valve collets dislodge in a valve?
if it was over revved and caused valve bounce
the valve stays open and then collides with the piston
after the valve has broken then the collets might drop out,
but not before hand, but as u say a mute point.

[Wildkat]

And let me guess.... when you showed this to her, did she ask 'is that bad?'...

[crazy steve]

And let me guess.... when you showed this to her, did she ask 'is that bad?'...

[trbig]

After reading about them some, I guess it's a problem for the valves in them to stick in the valve guides or seals if they sit a bit. WHen they're supposed to retract, they just sit there like idiots and let the pistons run into them. Instead of bending, apparently these valves are a bit more brittle at the stem. I've seen several pics like it of these little motors.

[motoman]

probably over heating/ lean mixture on an air cooled engine.

.........maybe......more likely way over revved and dropped valve spring keepers and the valve beat its way to the other side of piston............whatever the cause, a mood point at best......would think that model should'nt be too hard to find a replacement.....

[petejw]

Ok, this seems to be much more common in a MC engine than I have ever seen in automobiles. What in the world causes the valve head to drop off the shaft like that?

probably over heating/ lean mixture on an air cooled engine.

[DGXSER]

Ok, this seems to be much more common in a MC engine than I have ever seen in automobiles. What in the world causes the valve head to drop off the shaft like that?

[trbig]

.. to get this little Honda Rebel running again for her. The starter would only go about a half turn and lock up for some reason. One cylinder looks just fine. The other... not so much.














Anyone got a spare 250 Honda Rebel motor layin' around? lol.