Ahoy all! Seeking everyone's help on what appears to be a common issue. That being said, mine seems to be the opposite of most folks' concern: sight glass is full!
I recently picked up a supremely low mileage (143 miles) 2018 RE Classic 500 Pegasus. After immediately putting 400 miles on it, and realizing I was 200 miles past the recommended first oil change (300 miles), I completed it's first change today! I must admit, I am a motorcycling mechanic novice (minus the works of Peter Egan and Mr. Pirsig) and so had not even glanced at the sight glass prior to today.
Fast forward to buttoning up the engine; the sight glass is too low! Rather than going to the internet, I put in another 100 ML past the instructed 2.3 L (and soaked oil filter per Haynes manual). Lo and behold the sight glass is now totally full! Panicking, I drain the 100 ML out and sit in achievement gazing at my perfectly "at the top line" sight glass picture.
Then following the manual, I run for 3 minutes and the sight glass fills to the top! I then let the motor cool for a a dozen or so minutes, but the sight glass is still completely full. Reading many other forums and advice, I put the bike on the side stand, boom, no oil. Back up on the center stand, right in the middle! However, upon starting it up and running for a quick 5-10 minute jaunt around the neighborhood, the sight glass is full again. I am CONFIDENT there is no possibility of there being MORE than 2.3 L of oil (I have the 2.3 L empty bottles to prove it) and the vehicle sat draining for several hours while we sought out the proper gaskets from the local RE dealer. All of this is to say, I see no oil coming out of the right side of the crank case or in the air filter compartment (as someone noted on one forum is the relief valve). Should I be concerned? Should I start all over and put in a new 2.3 L after draining for longer?
TL/DR: My RE Classic 500 sight glass is almost to the top (above the maximum line) but I put in less than 2.3 L and a soaked filter. Should I be concerned or can I go on a coffee run tomorrow?
All help is appreciated! Thank you gents and gals.