Doubt the dude is a super tech like you are buddy. Just saying.....Well you assumed something that was not present; the camshaft has no ACR.
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That should of kept you busy. All that B stock lawn gear coming back to you to fix it.Wouldn't say I'm a super tech, but I did work on the 2 stroke side at a corporate shop for a couple years that did all of the Home Depot lawn equipment repairs.