Ravenswing · video

What this video covers

Rebuilding a Nissan Tohatsu 9.8 two-stroke outboard requires precise alignment of the piston ring bevels with the locating pins to ensure the pistons seat correctly in the cylinders.2:53 During reassembly, the power head should be removed from the main body to facilitate easier access to the throttle assembly, carburetor, and electrical components.5:59 After initial assembly, the engine experienced uncontrolled high-RPM revving, which was traced to incorrect ignition timing.14:16 According to the shop repair manual, the timing must be adjusted by positioning the advancer link rod so the coil plate rotates counterclockwise to contact the stopper when the throttle valve is fully closed.15:20 The project also required replacing a corroded original carburetor with a $36 aftermarket unit, which features a single air-mix adjustment screw.18:06 Proper lubrication with two-cycle oil during assembly is essential for smooth operation of the crankcase and internal components.3:09

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