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Common Technical Issues: YAMAHA XV750 Virago BRAND: YAMAHAMODEL: XV750 Virago YEARS: 88-89 CATEGORY: MOTORCYCLE TECHNICAL ISSUE DETAILS These Yamaha models have a permanent magnet battery charging system, consisting of a stator with three output wires, which feed into a regulator/rectifier. This unit rectifies the AC into DC and regulates this DC to 14.5V to ensure proper battery charging. The output from the regulator/rectifier connects to the battery through a main fuse. Common faults in this system: 1) Bad electrical connections. We recommend checking all electrical connections in these bikes. The connectors are not that great, and the bikes are fairly old by now. Clean the connectors one by one with some contact cleaner and make sure the bullet style connectors are tight. 2) Regulator/rectifier failure. The OEM regulator/rectifier is a commonly failing part. 3) Stator failure. This is a common problem on these machines. Causes are age, heat and vibration. Test and replace when it tests bad. We recommend using the fault finding chart. This guide will help you diagnose the charging system quickly. PRODUCTS AVAILABLE FOR THIS VEHICLE See products available for the YAMAHA XV750 Virago, 88-89 MOTORCYCLE. « Technical Resources Library :: Known Issues for Specific Vehicles
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