The Yamaha YZ125 and YZ250 are two of the most enjoyable motocross bikes available in the world. They are high-excitement, high RPM fun machines. It’s all about ripping gears, revving the tits off them and fanning the clutch – sure you will probably be faster on a new-age Yamaha four-stroke, but hell, you won’t have as much fun. But what if we took that fun factor, through a few gum trees into the mix and tuned those YZs for the bush? Then you’d have what you see on these pages of Dirt Action, the Yamaha YZ125X and Yamaha YZ250X – good fun? Oh, hell yeah.
The Yamaha YZ125X is an all-new model for 2020. It’s based heavily on the long-standing Yamaha YZ125 motocross machine, but is modified and tuned to be more usable in an off-road environment. The YZ125X has a revised compression ratio, changed power valve system and a CDI that is designed specifically for the off-road mode. The KYB forks and shock are tuned with settings for the bush, while an o-ring chain, larger rear sprocket, side stand a reserve setting on the fuel tap are all standard. The 19-inch rear wheel is replaced by an 18-inch for more off-road tyre selection and the reduction of flats when smashing rocks in the bush.
Back for 2020 is the Yamaha YZ250X, an enduro specific 250 two-stroke ready to battle the aussie bush. Not just a YZ250 with a headlight however, the Yamaha YZ250, like it’s little brother, is modified and tuned to suit enduro racing. The Yamaha YZ250X features a new compression ratio, new exhaust port timing and an updated CDI. The wide ratio gearing is ready for those longer transit roads and to save from continually clicking gears as the going gets technical. To save on those big log case outs, the Yamaha YZ250X has a new expansion chamber for 2020, it’s narrower both horizontally and vertically. An 18-inch rear wheel, stand, o-ring chain and reserve pet-cock is all standard.
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Inside, you will find the full review on the Yamaha YZ125X and YZ250X including some parts we recommend and opinions from our test riders, Mat McEntee and Blake Hollis.