The QSH wiring is necessary for connection to the iQSE QuickShifter Easy (IQSE) system and the electrical parts of the engine. Depending on the model, it can connect to:

• the injectors
• the ignition coils
• the crankshaft sensor

This allows the quickshifter to receive the necessary signals for its proper operation. The system works by detecting the movement of the gear lever, momentarily cutting ignition and/or injection for a few milliseconds, allowing upshifting without the clutch and without closing the throttle.

According to HealTech:

• QSH-Fxx = connection to the injectors (fuel injectors).
• QSH-Pxx = connection to the ignition coils.
• QSH-Cxx = connection to the crankshaft sensor (CKP - Crankshaft Position Sensor) and the main module of the quickshifter.
• QSH-Sxx = connection to the ignition coils / spark plugs.

WARNING: It must be verified that the wiring corresponds to the model and year of the motorcycle.