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Old 11-03-2012, 10:13 AM   #3543
Studly Adventurer
Joined: Oct 2004
Location: Merced, CA
Oddometer: 808
Originally Posted by Montauk View Post
Never seen engine heads from the top before, look at it seems like right side engine is a tad bit behind while left is tad bit forward. Is that an accurate observation?

Obviously it does work, but why like that? Maybe my current oil head s like that too.
your oilhead is also offset. The crankpins are opposed 180*, if they were in line the conrods would collide, so they're offset by a little bit. This slight misalignment is what causes the "rocking couple" of the boxer, which is a back and forth oscillation in the yaw axis of the motorcycle, it's the primary source of felt vibes.
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