Honda atc 350x backfire and stall manual#
Honda atc 350x backfire and stall series#

Service manual recommendation is an SE/SF API-certified motor oil (now obsolete) – API-grade SJ+ oils meeting JASO T903 MA standards would be a great alternative. Depending on ambient temperature, you may also go for SAE 5W, 10W-30, 20W-40, or 20W-50 viscosity grades. For top performance, use SAE 10W-40 Honda 4-stroke oil (without graphite or molybdenum additives) or its equivalent. Fuel tank capacity is 10 L/2.65 US gallons with a 2 L/0.53 US gallon reserve. It has a forced pressure (wet sump) lubrication system with an oiled polyurethane foam air filter like a UNI Stage 2 Air Filter NU-4134ST (view on Amazon). But even after these tweaks, the ATC250R is still faster at 74 mph (119 km/h). Gearing adjustment and porting/polishing are proven to render a top-end rating of up to 72 mph (116 km/h) on flats and going downhill. The ATC’s engine configuration lends to its 60 – 65 mph (97 – 105 km/h) top speed, horsepower of 26.6 hp/27 PS 7,000 RPM, and maximum torque of 29.4 Nm (3.0 kg-m, 21.7 ft-lb) 6,000 RPM. Engine displacement is 350.4 cm3 (21.38 in3) delivered by a 31-mm dual-valve Keihin carburetor. 1985 – 1986 Honda 350X Specs & Features EngineĪn air-cooled, forward-inclined 4-stroke OHC power mill with an 81 × 68 mm (3.19 × 2.68 inches) bore-stroke ratio, an 8.5:1 compression ratio, and 4-valve-per-cylinder design powers the vehicle. It featured components somewhere in the middle of Honda’s top-end and entry-level trikes back in the day, making it a perfect go-to vehicle for recreational riders.Īll in all, it is a much-coveted trailer and racing machine, given proper upkeep, performance mods, and a skilled rider. On the outside, it looked like a three-wheeled UTV stripped off of its cargo racks. Nonetheless, the Honda 350X had some impressive features – including nearly doubling the displacement of earlier generations of the Big Red series. Instead, its suspension system featured a leading-axle fork as opposed to a trailing-axle design. Interestingly, it was also the only Honda ATC that was not equipped with the Pro-Link rear suspension found on its siblings – a requisite back in the day for Honda racing bikes. Everything else about the machine remained untouched. The only notable changes to the wheeler are the increase in carb size (from 31 to 32 mm) and the oil pump upgrade. Often compared to the ATC250R, this Honda ATC received little to no improvements during its short-lived production run. Consequently, Honda did not have the opportunity to further develop the machine, as the industry shifted its direction towards four-wheelers. Due to the 1988 Consent Decree (or ATC ban), it only lasted in the market for two years before its demise. However, it turned out to be more of a sport machine than a racer. Honda engineers had racing in mind during the design process of the trike. Introduced in 1985, the Honda 350X launched during the height of the ATC craze, alongside other revolutionary machines – and had a lot of promise. The Honda 350X ATC is 9th in the line of all-terrain cycles and the 3rd generation of Big Reds released by Japanese manufacturer Honda. But if you are not quite convinced, this guide will enlighten you on the huge influence this three-wheeler had on present-day utility vehicles. Savvy aficionados would undoubtedly agree. Despite its inability to execute fancy stunts and jumps and its need for body English to unleash its potential, the 350X was a standout, nonetheless. But no period is too short for something as great as this bike. The Honda 350X was only in the off-roading limelight for two years.

Honda atc 350x backfire and stall series#

It was the penultimate installment to the legendary Big Red series – a lineup of performance-built trikes designed for aggressive trails and racetracks. Produced from 1985 to 1986, the Honda 350X ATC (Big Red 350) featured crisp brakes, grippy tires, and a powerful 350-cc mid-range motor.

Given its racing lineage and prestige, it would be fascinating to know what this reputable vehicle has to offer. This head-turner is not only a serious trail machine but also included in the illustrious Big Red bikes – a part of Honda’s sport ATC lineup that began in the ‘70s. Disclosure: We may get commissions for purchases made through links in this post.Ī true off-roading enthusiast would undoubtedly recognize the Honda 350X ATC as the archetype of modern-day utility vehicles but with three wheels instead of four.