My 2017 YFZ450r sounds like the rod bearing blew. bike has 20 hrs on it if that. For performance the bike has fmf 4.1 full exhaust and a vortex tuner map5- 6,6,7. I've changed the oil 3x already. air filter before every ride. oil is saturated and over filled with gas. Was full to the brim when I checked the oil. so fuel is leaking into the engine somehow. I noticed that after sitting over night the bike would take 5 or 6 seconds to start vs starting up instantly like when it was new or after riding it. It would only blow black smoke when you first started it. After riding if I let it sit and idle and revved it. no black smoke....something is leading me to think I have a stuck open fuel injector or a leaky one when the bike is sitting... or have a hole in my piston. anyone have any ideas or experience a similar issue before?