1990 Yamaha RAZZ Service and Repair Manual

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SH50A is the model code for the 1990 Razz, documented in Yamaha part number LIT-11616-05-80 along with every Razz model year from 1987 to 2001.

The code style changed at this point, which is why SH50A sits beside the earlier SH50MT and SH50MU entries in the same book. Read the frame plate and match the full string rather than assuming from the year.

Inside the book

Specifications given as service limits, tightening torques printed with the step that uses them, periodic maintenance intervals, engine removal and overhaul with clearance measurement, carburetor and ignition adjustment, charging and lighting inspection, and chassis procedures for brakes, wheels, suspension and steering.

Troubleshooting works from what the machine is doing back to the cause, which is the order that gets a reluctant small two stroke running again.

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