Code SW1NLSKW identifies the 2019 L-TX SE. Its service manual is LIT-12618-03-55, which Yamaha wrote for the 2019 Sidewinder range: the B-TX LE 153, L-TX DX, L-TX LE, M-TX LE 162, SRX LE, X-TX LE 141 and X-TX SE 141 are all in the same volume.
An SE model differs from the LE mainly in equipment and calibration rather than structure, so most of the book applies to both. Where it does not, the model code is printed with the specification.
Content covers periodic maintenance and adjustment, engine removal and overhaul with torque values and service limits, turbocharger service, fuel-injection and electrical diagnosis including fault codes, clutch and secondary specifications, front and rear suspension, track tension, brakes, steering and complete wiring diagrams.
