Electrosport Regulator ESR 170 Electronic control unitRef : ELS00221A / 1140078

ELECTROSPORT Regulator (Manufacturer reference: ESR170) — electronic unit dedicated to Suzuki roadsters and classic motorcycles. Three-phase 12V module designed to stabilize the charging circuit voltage and protect the battery and onboard electronics from overvoltage. Finished with original connectors: Block A 3 points (2 occupied: 1 black, 1 red) and Block B 4 points (3 occupied: 3 yellow).

• Type: Three-phase regulator/controller
• Voltage: 12 V
• Connector: Block A (3 points), Block B (4 points) — colors and pinout specified
• Battery compatibility: lead/acid, lead/acid MF, AGM, pure lead, gel

This regulator installs on the models for which it was designed and retains the original pinout for a plug-and-play replacement on compatible wiring harnesses. Warning: any technical modification of the connector or pin assignment will void the warranty.

Compatibility (examples of models):

• SUZUKI GSF400 Bandit (1991–1993)
• SUZUKI GS500E (1989–1996 / 1997–2000)
• SUZUKI GS500K/F (2001–2009)
• SUZUKI DR650S (1990–1991)

Important: this regulator is not suitable for lithium-ion batteries — use on Li-ion battery may damage the battery or electronics.