Honda NH80 Aero / Lead 1983-1984 Service Manual

The NH80 stands apart from Honda's better-known four-stroke Elite scooter line — this is a genuine two-stroke machine, and a notably unrestrained one. It carries Honda's first-ever five-port two-stroke engine fitted to a scooter, and Honda never tuned it down to make it easier to ride. Owner accounts confirm the result is genuinely quick for the class: sliding back on the seat and cracking the throttle open is enough to lift the front wheel off the line, a party trick that direct rivals like Yamaha's CV80 simply couldn't match — the difference in acceleration is described as night and day.

Power comes from a 79cc air-cooled two-stroke single, delivering drive through a CVT automatic transmission, with electric and kick starting and leading-link front suspension shared across the wider Honda NH-series scooter family. Braking uses drums at both wheels, riding on 3.50-10 tires.

Sold in North America (outside California) as the Aero 80 from 1983 to 1985, this same machine was badged Lead 80 everywhere else in the world, and sold in Canada under both the Aero 80 and, for reasons that remain genuinely unclear, the Mascot name on some 1983-1984 units specifically. Honda also partnered with Peugeot to build a licensed version of this exact platform, sold as the Peugeot SC 80 from 1983 to 1987.

Genuine American regulation ended this two-stroke configuration's US production run: 1986 rules requiring any motorcycle over 50cc to run a four-stroke engine effectively closed out the Aero 80's American availability, making this 1983-1984 range the true first-generation two-stroke chapter of the model before emissions law forced Honda's hand.

This factory service manual covers the procedures, torque specs, and diagrams needed to keep a 1983-1984 NH80 Aero/Lead's two-stroke engine and driveline running the way it was built to.