Latest generation YX engine of the most used brand in the pit bike sector. 125cc 4-stroke, 2-valve, horizontal cylinder engine 4-speed. gearbox (N1234) 3-disc clutch in oil bath. Kick start. Crf standard muffler and carburetor connections. Compatible with all pit bike models on the market.

Pit Bike 125cc YX Engine Basic. YX Motorsport is considered the best brand pit bike engine. This engine has a 4-speed race pattern gearbox N-1-2-3-4 and features a big valve head. Kick start in neutral gear only. Bore x Stroke is 54mm x 56mm, and the inlet exhaust valve is 23mm x 27mm. Factory official power figures quote 8.8 horsepower. Includes

THIS IS A BRAND NEW YX 125cc AIR COOLED 4 SPEED MANUAL. IT WILL BE SUPPLIED WITH KICK START, GEAR LEVER, INLET MANIFOLD & GASKETS. 4 SPEED GEAR BOX 01234 (ALL UP) WE SELL THIS IN OUR OTHER ITEMS AS A FULL PACKAGE OR WITH A CARB. THESE ENGINES ARE APROX 445mm LONG, 280mm WIDE.

Thinking about upgrading my pit to yx140 engine. How much would my old YX125 engine be worth? just had new valves, stem seals and piston. Does have slight oil leak from damaged gasket.

Get the SSR SR125 125CC COMPLETE ENGINE ASSEMBLY MANUAL YX - a reliable and powerful engine for your pit bike. Easy to install and maintain, providing excellent performance.

THIS IS A BRAND NEW YX 125cc AIR COOLED 4 SPEED MANUAL. IT WILL BE SUPPLIED WITH KICK START, GEAR LEVER, MIKUNI VM22 CARBURETTOR, AIR FILTER, INLET MANIFOLD & GASKETS, COMPLETE LOOM WITH CDI, COIL & KILL SWITCH. 4 SPEED GEAR BOX N1234 WE SELL THIS IN OUR OTHER ITEMS AS A FULL PACKAGE OR WITH A CARB. THESE ENGINES ARE APROX 445mm LONG, 280mm WIDE.

Being the top spec electric start 153fmi engine model, this engine has the alloy cylinder barrel, and the wide ratio gearbox for increased top speed and long-term reliability also complimented with easy starting with both kick and electric start. Why …

2024年6月26日 · The new generation of 125cc engine from the YX factory. With the factory fitted big valve upgrade and aluminium cylinder, the factory claim 12bhp at the flywheel from this engine. -Complete Genuine YX 125cc engine 12 HP.

2018年1月7日 · it depends what 125 it is as I'm sure theres a few different ones, in the youths at minibike champs the z125 is the weapon of choice as you can put an aftermarket head on etc. i suspect its a yx125 so I'm not sure what you can do, possibly a z40 cam from a yx140 will fit, a bigger carb will give you more are the top end although it'll be harder ...