2026 Yamaha GP1900 HO Service and Repair Manual

For 2026 the GP1900 HO is coded GP1900A-CB, and the service manual remains LIT-18616-04-37. Coverage runs 2024 through 2026 and includes the GP1900 HO with audio.

Note the code change from the earlier builds; the manual carried forward but the model code did not, so confirm GP1900A-CB against your identification plate before ordering.

• Engine overhaul with torque and wear limits
• Jet pump and driveline service
• Fuel, cooling and steering procedures
• Hull and hood hardware
• Complete wiring diagrams
• Symptom-based factory diagnostics

Everything here comes from Yamaha rather than from a third party working backwards from the craft. The specifications are the ones the factory set, presented at the point in the procedure where you need them, which is the whole reason a service manual is worth having on the bench.