My bike started sputtering towards end of the day.
Under hard acceleration about one time per lap the engine seems to sputter as if it has low gas for about 1-2 seconds then comes back on strong again. Scary when it happens on the face of a jump. Bike turns on fine and runs fine after it sputters, but the sputtering comes back 1 lap later.
I thought it could be the spark plug, so I checked it was snugged and had propper gap and color was fine. The gas I use is high end Cheveron with 10% Torco Race fuel 110 octane, so its not the gas.
My thought was either a bad fuel pump or clogged fuel pump filter. Not sure how to tell the difference though. Any suggestions as to the cause of this problem.
Spokes574
California