Yamaha YFM90
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| Yamaha YFM90 | |
| Manufacturer | |
|---|---|
| Also called | YFM90R |
| Production | 2009 - 2019 |
| Class | ATV |
| Engine | single cylinder, four-stroke |
| Bore / Stroke | 47.0mm x 51.0mm |
| Compression ratio | 10.2:1 |
| Ignition | dc-cdi |
| Transmission | Gear box: automatic Final Drive: chain |
| Suspension | Front: independent double wishbone, threaded preload adjustable dual-rate coil-over springs, 3-way adjustable damper, 250 mm wheel travel Rear: swingarm |
| Brakes | Front: expanding brake (drum brake) Rear: expanding brake (drum brake) |
| Front Tire | 18/7-8 |
| Rear Tire | 18/9-8 |
| Wheelbase | 39.76 inches (1010 mm) |
| Length | 58.66 inches (1490 mm) |
| Width | 34.84 inches (885 mm) |
| Height | 35.83 inches (910 mm) |
| Seat Height | 25.75 inches (654 mm) |
| Weight | 264.55 pounds (120.0 Kg) (dry), 120.0 kg (wet) |
| Recommended Oil | Yamalube 10w-40 |
| Fuel Capacity | 1.27 Gallon (4.80 Liters) |
| Manuals | Service Manual |
The Yamaha YFM90 was a single cylinder, four-stroke ATV produced by Yamaha between 2009 and 2019.
Engine[edit | edit source]
The engine was a air cooled single cylinder, four-stroke. A 47.0mm bore x 51.0mm stroke result in a displacement of just 88.0 cubic centimeters. Fuel was supplied via a single overhead cams (sohc).
Drive[edit | edit source]
The bike has a automatic transmission. Power was moderated via the Automatic CVT.
Chassis[edit | edit source]
It came with a 18/7-8 front tire and a 18/9-8 rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The front suspension was a independent double wishbone, threaded preload adjustable dual-rate coil-over springs, 3-way adjustable damper, 250 mm wheel travel while the rear was equipped with a swingarm. The YFM90 was fitted with a 1.27 Gallon (4.80 Liters) fuel tank. The bike weighed just 264.55 pounds (120.0 Kg). The wheelbase was 39.76 inches (1010 mm) long.
2013 Yamaha YFM90R[edit | edit source]
The 2012 YFM90R is a nice way to start teaching the basics of off-road riding to the youngest of riders. Diminutive in displacement and size, these ATVs are comfortable thanks to their age-specific ergonomics, but are punchy enough to offer a thrilling ride on rough terrain. Whether you're thinking about starting off in the back yard or having some amateur racing fun at the track, the 2012 YFM90R can handle things very well.
Even more, this kids' quad will also fare very well on forest trails and across the heathers: a fully automatic transmission and dependable brakes make it easy to operate and provide reassuring feel which is perfect for honing the skills of the young riders.