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Old 07-05-2009, 07:33 PM   #1 (permalink)
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Upper rocker box oil leak

I have a 2004 Sportster 1200 with a recurring oil leak at the front upper rocker box cover. I have replaced the large and small gaskets three times in the past two years. It runs with no leaks for a few months and then will leak again. I have put the upper rocker box cover on a glass table top and it doesn`t appear to be warped..., and i`ve retorqued the torque the bolts after a few hundred miles after replacing the gaskets...anybody out there with the same problem and a possible solution???
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Old 07-07-2009, 11:06 AM   #2 (permalink)
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What gaskets are you using? Is it leaking at the rubber or on the base of the rocker boxes?

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Old 02-12-2010, 05:26 PM   #3 (permalink)
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BrianK wants to know Dino or Syn?
My wife's 08 Nightster has had the rocker box gaskets replaced twice under warranty because of this.

If it does it again after the warranty's up, I'm gonna try a thin smear of Yamabond on both sides of the gasket.
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