Yamaha SJ650R Service Manual - LIT-18616-00-89. The Official Service Manual for Reliable SJ650R Maintenance. The Yamaha - SJ650R Service Man - LIT-18616-00-89 is the definitive factory-issued guide for maintaining and repairing your Yamaha SJ650R watercraft. Whether you're a hands-on owner, a marine technician, or restoring a classic model, this manual provides detailed instructions straight from Yamaha's engineering team.. From routine maintenance to complete overhauls, every critical system-en