Honda Rincon 680 TRX680 2006-2011 Service Manual

One enthusiast retrospective on the Rincon's long production life nails the personality perfectly: "the Rincon occupies a unique niche — it's the Volvo station wagon of ATVs. Not the flashiest, but buyers keeping their quads beyond 5,000 miles often appreciate its steadfast nature." The 675cc-engine TRX680 replaced the earlier 649cc Rincon in 2006, and this range represents the platform's original genuinely long-lived generation — a machine that ultimately survived 15 years of production with only subtle refinements before eventually being discontinued.

Power comes from a 675cc liquid-cooled OHV single-cylinder engine, mounted longitudinally with a 102.0mm x 82.6mm bore and stroke, fed by PGM-FI electronic fuel injection through a 40mm throttle body, delivering a claimed 38 hp with genuinely strong low-rpm torque and power tuning — the fuel injection system delivers precise fueling that eliminates the carburetor cough that plagues older ATVs during altitude changes, a real advantage for riders working across varied elevation. Power runs through Honda's electric Hondamatic automatic transmission, described consistently across Honda's own marketing materials as "bulletproof" — genuinely smooth, low-maintenance shifting that requires no clutch input from the rider.

Autoevolution's own breakdown of the platform's standard equipment covers what's made the Rincon a genuine favorite among working riders and campers alike: full disc braking at all four corners, on-the-fly selectable TraxLok 2WD/4WD, and Honda's acclaimed torque-sensitive front differential for genuinely confident traction when conditions demand it. Independent front and rear suspension with gas-charged shocks — a double-wishbone design at both ends, rather than the swingarm rear common on many rival ATVs — smooths out rough terrain, rocks, and muddy trails alike. A liquid-cooling system maintains consistent performance whether crawling through a swamp at 3 mph or holding highway speeds across open ground. An accessory hitch and generous steel luggage racks expand the Rincon's genuine working capability, while a top speed around 63 mph and 600 lb curb weight round out a machine built for substance over speed. This 2006-2011 generation predates later running updates (including a factory-shifted FE variant added in later years), but shares its fundamental engine and drivetrain architecture with Rincons built well beyond 2011.

This factory service manual covers the procedures, torque specs, and diagrams needed to keep a 2006-2011 FourTrax Rincon TRX680 running the way it was built to.