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Join Date: Nov 2007
Location: Chandler, Arizona
How much oil is a little? I've ridden/driven lots of vehicles that burned oil. Not a single one of them ever quit running. I just poured in more oil. I have one car right now that burns a qt. of oil in 200 miles. I put in half a qt. every 100 miles. Been driving it that way for 10 years. Compression is good. Has to be the valve guide seals. I clean the plugs every 6 months, and replace them once a year.
Do you know if your bike is a CA model (it will have 2 fittings at the back of the gas tank, below the front of the seat if it is) While I don't see how that could cause oil consumption, I would go ahead and remove all the emissions crap, including that 3 way valve and all the hoses. Cap off where the hoses connected to the front and rear cylinder head, the air box, and the rear carb. If it is a CA model, it will also have a bunch of emissions crap just above the front of the swing arm. Remove all that as well. It serves no purpose, and can cause starting and running problems, such as engine flooding and improper tank venting.
If the bike is running well, I would not tear the engine down looking for where the oil is going, unless it is using a LOT of oil. This engine holds 4 qts. and if you fill it to the top of the sight glass you should be good for several hundred miles. I would also use 20w50 oil if you are not already. If you do have a bad ring seal, the heavier oil will not leak past the rings as bad as lighter oil. Also, if oil is getting past the rings, that indicates wear or damage, which might extend to other things, like bearings. There should not be enough normal wear at 10K miles to cause oil burning. That is barely broken in.
I am a motorcyclist, NOT a biker.
1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike