Oldfeller--FSO
Serious Thumper ModSquad
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Hobby is now "concentrated neuropany"
Posts: 12673
Fayetteville, NC
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rl153, your 2005 bike has less than 5,000 miles on it so you would count as practically new as far as blow by goes. This bike makes a good "new bike" test bed for the idea, so you will learn what is to be learned on a new bike set up.
Your hot test for the oil level you picked should show just about an empty window, mebbe a tiny bit more, so I would think your chances of any extra oil in your air box would be minimal.
The main question about oil in the air box is amount based - the dump tube (the one you are supposed to open at each oil change) generally collects oil and byproducts from the air box on even a brand new bike. The huff tube from the head carries oil particles and blow-by vapors to the air box naturally where it accumulates, runs down the walls of the air box and goes down the dump tube.
Actually, the majority of the oil particles get sucked back through the carb and get burned in the next combustion cycle, so we are talking "remnants" of an intentional pollution control process here.
New bikes generally generate oil in the airbox/dump tube to the tune of a partial shot glass full per oil change.
The trouble sign we are looking now for is a positive puddle of oil at the bottom of the air box showing that a significant amount of oil particles has made the trip from head to air box.
Very old bikes have this issue naturally, as their blow by is great and the amount of oil particles making down the huff tube are great as well.
What does this do to your bike? If you are using a K&N or a list polyfill filter, nothing. It is just something to clean up periodically.
If you are using a paper filter, likely nothing will happen as the paper filter is well up away from any layer of oil at the bottom of the air box. Lay the bike over though, and the oil could get on to the paper filter as it runs out of the air box (bike on its side).
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Any of you side stand boys noted any amount of oil sitting in the bottom of your air box yet? Any greater flow from your dump tube at oil change time?
No news is good news ..... (same request added to the Tech Thread)
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