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CM200T owner manual indicates that the crankcase breather tube has a plug. My tube is not plugged. What effect does this have? Is this a good or bad thing?

The breather tube ain't gonna breath if it's plugged, eh.

They are probably refering to a vented cap to keep water, etc. from getting in. If the end of the tube is pionted downwards with all the other vents and overflow lines, it should be fine.

I guess the correct term is "crankcase breather drain tube." Don't know why they usually have it plugged. It is highly unlikely that anything without legs could get that far up and forward though the tube. Thanks for the help.