Yamaha 2011 FZ8NA(C) Service Manual page 352

EAS39P1804
ENGINE STOPPING DUE TO SIDESTAND OPERATION
When the engine is running and the transmission is in gear, the engine will stop if the sidestand is
moved down. This is because the electric current from the ignition coils does not flow to the ECU
when both the neutral switch and sidestand switch are set to "OFF", thereby preventing the spark
plugs from producing a spark. However, the engine continues to run under the following conditions:
• The transmission is in gear (the neutral switch circuit is open) and the sidestand is up (the side-
stand switch circuit is closed).
• The transmission is in neutral (the neutral switch circuit is closed) and the sidestand is down (the
sidestand switch circuit is open).
IGNITION SYSTEM
8-3