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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc.

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Old 03-19-2008, 04:54 PM
moff747 moff747 is offline
Join Date: Dec 2007
Posts: 38
Default M6 hole under engine?

I noticed when changing my gear oil an M6 threaded hole on the underside of the engine, Anyone know what it is? theres nothing in it just a threaded hole. Is this a breather or should it be plugged?

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Old 03-19-2008, 06:46 PM
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Rick Rick is offline
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Join Date: Aug 2006
Location: Lodi, Ca
Posts: 1,930

If I'm not mistaken all theGasGas engines have another drain hole that is located towards the front of the motor under the crank area. That is used to drain any thing that might happen to get into main bearing area. That should have a bolt with a copper washer. Other than that an oil drain plug for the tranny. Anything else could just be a tapped hole with threads for mounting the cases to during assy process?
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Old 03-19-2008, 10:48 PM
Treesmacker Treesmacker is offline
Join Date: Aug 2006
Location: MN
Posts: 82

on the pre-2005 bike it is a breather hole to the ign. and also a fixture hole for ass'y. Some guy's plug it with a screw.
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