or is there? Let me give you a quick background, so all facts are in...
my friend offered me his old bike that was sitting around in pieces a year ago at a very low price. He dismantled it to fix a throttle/idle issue, never got around to it, so it sat there for 2-3 years. I picked up the bike, put it back together, replaced the idle air control valve, filter, plugs, all basic maintenance, bam! fired right up. Still had the throttle issue when cold (it would not rev past 4k rpm and not build power), but once warmed up, it was pretty good.
I rode around for a month or so (sparingly, not every day), and took it to the dealer to have the ECU reflashed. Once the new ECU tune was loaded, bike runs like a champ. Takes a couple cranks to start when it's cold, but otherwise idles and responds just fine, and I've put maybe 700-800 miles since the ECU reflash
Now onto the problem. This weekend I decided to flush the coolant, oil, clean the chain, do misc. stuff to it. When I drained the oil (which has no more than 1500 miles on it), it had a hint of burnt gas to it. I wouldn't say it was very strong, but it was sufficient enough to make me worry. The motor is 9 years old now, and has just under 19,000 miles. It was never abused at the track, but has been romped on around mountain roads and used for commute. This is the 2nd oil change since I got the bike. There is no black or blue smoke, and when I wind it out in neutral to 9-12k rpm, I don't see much coming out of the exhaust (on a pit stand)
What are my chances that this is piston blow by, or if it's just a fluke from all the crap from sitting around, or incorrect amount of fuel being dumped from the bad ecu load when I first rode it? The bike is a Triumph TT600, which is basically a copy of Kawasaki Ninja ZX6R