My 03 WR 450 f runs perfect and very strong, when I let off the throttle in a downhill situation riders behind me say that the bike is burning oil. motor is stock with FMF exhaust and recluse auto clutch. I change the oil + filter pretty much after every weekend of ridding. Will putting to much oil back in after a change cause this?.
The cylinder is in the front of the bike and on a down hill the oil in the crank case could be pushing past the ring. Yes, it could be an over full situation. Only run the recomended amount of oil. You can actually rob yourself of power and do damage by over filling. I've already seen a guy blow the soft plugs right out of his Yamaha by over filling the oil. Also, be careful when changing your air filter. It can be very easy to drop dirt inside and that will definately score your cylinder walls and cause permanent smoke. It is most likely exactly what you think it is. Good Luck.
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