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![](http://www.newagtalk.com/mapdots/hudguard.jpg) SW Ohio | the way I am looking at your arrows they are in the crankshaft area, it may be possible this is some kind of air dump contraption that makes for easy start as alluded to in above post but the location is foreign to me unless it is some centrifugal valve deal. If there is lots of air here it would indicate leaking rings into the crankcase.
you might try browsing around this place to see if anything looks like yours http://www.mastertoolrepair.com/ . | |
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