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Yamaha YZ125

Field	Value
name	YZ125
image	Yamaha YZ125 Motorcycle.jpg
manufacturer	Yamaha
production	Since 1974
class	Motocross
engine	124 cc reed valve two-stroke single
power	33.53 hp
transmission	5- or 6-speed sequential manual
suspension	Mono-shock, 13 inches travel
brakes	Hydraulic disc
tires	Front: 80/100-21-51M
Rear: 100/90-19-57M
wheelbase	56.8 in
length	84.1 in
width	32.6 in
height	51.8 in
seat_height	39.3 in
dry_weight	190 lb
wet_weight	208 lb
fuel_capacity	2.1 usgal
related	Yamaha YZ85
Yamaha YZ250F
Yamaha YZ450F
Yamaha YZ250

Rear: 100/90-19-57M Yamaha YZ250F Yamaha YZ450F Yamaha YZ250 The Yamaha YZ125 is a motocross racing motorcycle with a two-stroke 124.9 cc displacement single-cylinder engine made by Yamaha since 1974. It is available to the public. For the first two years it was made with dual rear shocks, then changing to a monoshock. The YZ125 has been ridden to five AMA National Motocross Championships, and multiple AMA Regional Supercross Championships.

The YZ125 has a 124 cc reed valve-inducted two-stroke engine. It was air cooled from 1974 to 1980, and liquid cooled since 1981. It has a Mikuni 38 mm TMX series carburetor. The engine produces 35 hp.

The YZ125 has been built with five- or six-speed manual sequential gearbox depending on model year. The 2005 model has a constant-mesh, wet, multiple-disc coil-spring clutch.

History

From 1973 through 2004, the YZ125 had a single backbone frame made from steel. It generally averaged from 176 to. For the 2005 year, Yamaha switched to a single backbone frame constructed from an aluminum alloy. This frame material change dropped the dry weight to 190 lb. For 2008 models, the wheel assemblies and front fork suspension were redesigned, yielding additional weight savings, making wet weight, no gas sub-200 lb. Aluminum-framed YZ125s are notably "flickable" and sometimes this trait is seen as a drawback since they tend to become more difficult to control on rough surfaces. The YZ125 used a conventional telescopic fork tube through 1988, then in 1989, added the first upside-down fork. A number of well known riders have chosen this as their go-to bike, such as AMA Champ Dom Barbuto and his brother Nick Barbuto, X-Games medalist Kyle Ford, and StinkBike Racing's own local Seattle legend Joey Merkin. Also, 11-time Nationals winner and rival of Eli Tomac, Richard Rich

References

"MXA's 20 Most Frequently Asked Questions".
"EVERY CHAMP {{!}} Motocross Action".
"10 Things You Might Not Know About The YZ125".
(18 April 2016). "2016 YAMAHA YZ125 Two-Stroke Race Test: Everything You Need To Know".
(19 November 2016). "Two-Stroke Shootout: KTM 125SX Vs. YAMAHA YZ25".
"2010 YZ125 Specs". Yamaha Motor Corporation, USA.

Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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