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Oil in Airbox?

Old 06-24-2004, 09:17 AM
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Oil in Airbox?

Just replaced my Air Filter and Plugs for the 1st time last week. Bike has 16,500 miles on it. When I pulled the filter, noticed there was some oil in the bottom of the housing, on the right side. Some time ago I performed the PAIR mod by removing the valves and replacing them upside-down. Does this have something to do with it or is it normal for the oil to be there?
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Old 08-18-2004, 04:28 PM
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Re: Oil in Airbox?

a tad bit of oil is nothing to get your panties in a twist over. The valve cover breathers vent to the airbox, so that's normal.

If your airbox ends up COATED in oil, then yeah, you've got "issues" that need to be fixed/addressed.
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Old 02-16-2005, 07:03 AM
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Re: Oil in Airbox?

I prefer to block the PAIR off under the valve cover with a pipe fitting .

That way there is no chance of exhaust gas leaking into the crankcase giving excessive crankcase pressures and jacking with the motor oil . A guy might think about putting a washer under and on top of that rubber seal around the dowel that locates into the valve cover to tighten up the seal when turning the PAIR plate around .

Another way is if the engine is apart for mods , weld up the hole in the exhaust port bowl on each head and blend with a die grinder . Thats what I did .

Of course overkill if the motors not already tore down
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