{"nhtsa_id":10019746,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2006-04-25","date":"2006-03-21","document_id":"139","mfr_campaign":null,"replaces":"139R","component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"GS500F ENGINE KNOCK AT IDLE / A MILD BUT ANNOYING KNOCKING NOISE FROM THE CYLINDER HEAD AREA. *AK","document":null,"url":"https://open.wenmarpro.com/bulletins/10019746","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"SUZUKI","model":"GS500","year_from":1994,"year_to":2002,"match":"exact","vehicle_ids":["1994_suzuki_gs500","1995_suzuki_gs500","1996_suzuki_gs500","1997_suzuki_gs500","1998_suzuki_gs500","1999_suzuki_gs500","2000_suzuki_gs500","2001_suzuki_gs500","2002_suzuki_gs500"]},{"make":"SUZUKI","model":"GS500","year_from":2004,"year_to":2005,"match":"exact","vehicle_ids":["2004_suzuki_gs500","2005_suzuki_gs500"]},{"make":"SUZUKI","model":"GS500F","year_from":2006,"year_to":2006,"match":"base","vehicle_ids":["2006_suzuki_gs500"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}