Join Date: Aug 2011
Year/Make/Model: 2014 Kawasaki Vulcan Vaquero ABS SE
Color: Orange SE
As far as tuning, every bike, climate, and person is different. The only person who can tell you if you need a fuel processor is someone with the skills and tools to tell if your air/fuel mixture is correct. That said, GENERALLY, a bike that has been debaffled but has a stock intake does not TYPICALLY need a fuel processor. You may try to bump up your idle a bit. That usually fixes it. I've found that most folks have their idle fairly low, which seems to cause the popping. Also, FWIW, I get popping if I use high octane fuel. If I use regular 87 (what Kawasaki recommends) I don't get any popping. There are a few threads on that topic already (octane) explaining why that might be.
Now; on to the oil. Yes, it's "normal". Basically, oil is blowing out of the breather into the intake, which itself has places to drain moisture or oil from, that probably just got blown back on your pipes while riding. It can happen if you overfill the engine with oil, or at really high RPM's. (The former can make the latter worse). I wouldn't be concerned as long as you don't see any places where oil is coming from other than the air intake. I bought a measuring cup from wally-world to measure out 1/2qt. That way I put in 3.5qts when I change the oil instead of 'eyeballing it'. That has saved me a lot of cleanup, as I tended to err on the 'overfull' side than the 'underfull' side, and that meant an oily right side of my engine.
"8 But God demonstrates his own love for us in this: While we were still sinners, Christ died for us."
Romans 5:8 (NIV)
2014 Kawasaki Vulcan 1700 Vaquero ABS SE
iPod Connector Kit, Kuryakyn Highway Pegs, Mustang Touring Seat, Marvella's Hitch, Kuryakyn Trailer Wiring Kit, Haul-Master Tag-a-Long Cargo Trailer
2011 Honda Shadow Aero 750 (Wife's)
Memphis shades quick-release windshield, OEM Solo Seat, Mustang Fender Bib, Chrome Solo Luggage Rack
Past: 2006 Vulcan 900 Classic LT