On a lot of modded aircooled Suzukis I see they have extra oil lines running between two points on each side of the head that are blocked on the stock bike (I think one is the fairing mount for GSXRs). Some just link the two points, but some actually seem to have a feed from the oil pump behind the cyls I've even seen some that had an extra oil cooler before the head. I've heard vauge references that these "link the oil channels for the cams" or similar stuff, but I've also never heard anyone say that this was an important mod. Do people just do it because it looks cool? Does it improve cam lubrication for high-lift cams or for bike that spend a lot of time doing wheelies or stoppies? None of the catalogs that list them seem to explain what they're for (or at least what they do). What's the deal?
Matt
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