{"nhtsa_id":40007,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1995-11-01","date":"1994-06-01","document_id":"CAMP/M1044","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"HARLEY DAVIDSON HAS LEARNED THAT HTE PRIMARY CHAINS USED IN PRODUCTION ON A NUMBER OF 1994 1340 CC SOFTAIL AND DYNA MODEL VEHICLES MAY HAVE EXPERIENCED SOME PREMATURE WEAR. THE ROLLERS OF THESE CHAINS HAVE BEEN FOUND TO HAVE A HARDNESS THAT IS SUBSTANTIALLY LOWER THAN THAT REQUIRED FOR PROPER PERFORMANCE UNDER EXISTING CONDITIONS. TO CORRECT THIS CONDITION, HARLEY DAVIDSON HAS ELECTED TO REPLACE THE PRIMARY CHAINS OF AFFECTED VEHICLES. *TW","document":null,"url":"https://open.wenmarpro.com/bulletins/40007","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HARLEY-DAVIDSON","model":"HARLEY DAVIDSON","year_from":1994,"year_to":1994,"match":null,"vehicle_ids":[]}],"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":[]}