The Honda XR600R was a very popular offroad motorcycle with an air-cooled single cylinder, four-stroke engine. The bike was manufactured by Honda from 1985 to 2000 and was part of the Honda XR series. The currently available road oriented XR650L model is similar to the XR600R with an engine of more displacement but lower compression and less horsepower. The XR600R was superseded by the XR650R with a 649cc liquid-cooled engine and an aluminum frame.
The engine displacement is 591 cc with four valves placed in a RFVC (Radial Four Valve Combustion) radial disposition with a single camshaft. It has a dry sump lubrication system. The engine has a compression of 9.0:1 with a bore/stroke of 97 × 80 mm.
The engine is fed by a 39 mm piston-valve carburetor.
The front suspension is managed by two conventional cartridge valve 43 mm forks with compression and rebound adjustability, and in the rear is a Prolink single shock with preload, compression and rebound adjustability.
The bike has a five-speed transmission and a kickstarter.
1985 models weighed 121 kg with later models gaining 20 kg plus as materials cheapened with swing arms and wheel base growing. Catch phrase of Duralumin kick starter to highlight Hondas commitment to the first of the XR600 range featured heavily in initial advertising
General specifications for the Honda XR600R
Specifications for 1992 model and on, unless noted