ninjette.org - View Single Post

MrTrouble · May 22nd, 2019, 08:27 AM

Hey all,

Tuner has my bike and as he's doing runs, it drops 2 hp anywhere between 11K and 13K rpm. Very strange. It is sporadic, as to when it happens, 11K, 11.5K, 12K rpm, etc... But it drops the exact same every time. The A/F curve is constant, smooth and a thing of beauty.

2013 Ninja 300 Race bike. Supersport build.

Pulled the Bazazz, no change, did it with clutch switch in and out, no change, disconnected quick shifter, no change. The whole thing is very bizarre.

Anybody else seen this before? Gonna change the ECU today to see if it is a signal issue, but I can't think of anything else that would cause it.

Any input would be appreciated.

May 22nd, 2019, 08:27 AM	#1
MrTrouble ninjette.org newbie Name: Juan Location: Alexandria Join Date: May 2017 Motorcycle(s): 2013 Ninja 300, 2009 GSXR 1000, 2005 American Ironhorse Legend, 1999 Honda Shadow A.C.E. Posts: 9	Ninja 300 dropping power at high RPM Hey all, Tuner has my bike and as he's doing runs, it drops 2 hp anywhere between 11K and 13K rpm. Very strange. It is sporadic, as to when it happens, 11K, 11.5K, 12K rpm, etc... But it drops the exact same every time. The A/F curve is constant, smooth and a thing of beauty. 2013 Ninja 300 Race bike. Supersport build. Pulled the Bazazz, no change, did it with clutch switch in and out, no change, disconnected quick shifter, no change. The whole thing is very bizarre. Anybody else seen this before? Gonna change the ECU today to see if it is a signal issue, but I can't think of anything else that would cause it. Any input would be appreciated.