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YX 140cc 4-stroke engine with racing camshaft

Réf : YX150-2 See the description

419.00€ 70.00€

349.00€

13x 14x 16x 18x 24x 36x 48x ...

30.23 € / months

Ignition (option)

Carburetor (optional)

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Notice d’aide au montage + d'infos

	Faisceau standard	Faisceau Skyteam Dax
Pick up	bleu-blanc	rouge - blanc
Éclairage	jaune	jaune
Batterie	jaune ou blanc	jaune ou blanc
Masse	vert	noir / blanc
Basse tension	noir-rouge	jaune-rouge
Point mort	vert-rouge	vert-blanc

Must-haves

Clutch cable any gear start - 1030mm 12.99€ 5.99€

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IPONE graduated measuring cup - 500ml 9.99€ 9.99€

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4T PUTOLINE 10w40 Semi-Synthetic DX4 Engine Oil 1L 14.99€ 10.99€

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IPONE Dispenser - BROC PLASTIC 5 Liters 19.99€ 19.99€

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10 Liter Drain Pan 22.95€ 22.95€

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Environmental mat - IPONE 69.99€ 69.99€

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Rolling Dead (Classic Version) - Board Game 14.90€ 12.90€

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Pourquoi vous allez l'adorer !

Nervous and robust, it makes the happiness of cross enthusiasts on terrains!
Official distributor of YX© engines
Delivered with kick starter, selector, intake pipe and gasket
Manual 4-speed gearbox (N1234)
Reinforced clutch for starting in gear: No more downshifting to neutral when you stall, with this engine you restart immediately!
Ideal for intermediate riders
Number of HP: 13.6hp

140cc YX Engine with Racing Camshaft for Dirt Bike, Pit Bike

The 140cc engine is today the best-selling and most widespread on motocross tracks.

The 4T YX 140cc engine, equipped with its Racing camshaft, delivers a power of 13.6 horsepower. Designed for performance enthusiasts, this engine offers much more than just raw power. Each component has been meticulously optimized for instant responsiveness and sharp, lightning-fast acceleration.

Thanks to its Racing Camshaft, this engine makes the most of every throttle twist, offering a linear power curve and a precise response to every accelerator input. Whether you are on the track or on the most demanding trails, this combination of power and control will propel you to the front of the pack.

It is a Reliable engine, which requires little maintenance, oil changes every 15/20 hours. Regular lubrication and cleaning. The engine contains storage oil that must be drained upon receipt.

This engine is known for its low-end torque and is suitable for all levels Its reinforced clutch starting in gear 4 speeds (N1234) allows a gear change quick and precise, the in-gear system allows a start with a gear engaged.

Sold with intake manifold + gasket, kick starter, and selector, breather hose, ignition cover, gearbox output sprocket

Don't forget to run in with 3 full tanks at half throttle and gas!!

(Many replicas exist of this engine, we guarantee the official origin from the YX factory and warn against copies present on the market)

Carburetion Pack: Air filter brand US1

Displacement	140 cc single cylinder 4-stroke
Power	13.6 hp
Bore	56 mm
Camshaft	Racing
Valves	28 mm / 23 mm
Clutch	5 discs starting in gear
Ignition	YX Rotor
Transmission	N1234 upwards
Cooling	Air/Oil
Starting	Kick
Oil capacity	950 ml
Weight	22 kgs

Compatible with all brands of dirt bike, pit bike (APOLLO / YCF / GUNSHOT / CRZ / PISTERPRO / ORION...)

Starting advice: We recommend an engine oil change at startup as well as a break-in of 3 full tanks at mid-range. All adjustments are made at the factory, however, a valve adjustment may be necessary during the break-in if you observe kickback/compression returns or at the exhaust valve (Timing: 0.05 Intake / 0.08 Exhaust)

Description of Ignition and Carburetor Stages

Ignition

-Stage 1 (18 euros)

Wiring harness + standard 1-pin CDI + NGK type ignition coil (ref: P0296 + P0299 + P0298-BK)

-Stage 2 (30 euros)

Wiring harness + CNC racing 1-pin CDI + red NGK type ignition coil (ref: P096 + P0298 + P0301)

Carburetor

-Stage 1 (45 euros)

MIKUNI 26 Carburetor + US1 air filter (ref: P0020 + US-38-BK)

-Stage 2 (49 euros)

MOLKT 26 Carburetor + US1 air filter (ref: P0023 + US-44-BK)

Schema Electrique Allumage

Detail of the electrical connection for your Dirt Bike and Pit Bike ignition plates (88cc, 107cc, 125cc, 140cc, 150cc)

Download (721.99KB)

Motorization

Kick Start Size	16mm (Big Size)
Engine Type	Single Cylinder 4 Stroke 140cc YX
Engine Capacity	140cc
Cooling Type	Oil Cooling
Bore	56mm x 57mm
Clutch	Any Gear Start (Can be start with any gear up)
Start Up	Kick Start
Fuel	Unleaded 95 / 98
Clutch Type	Manual
Ignition	3 wire ignition tray (without light)

Number of CVs	11,2hp
Compression Ratio	9.8:1
Maximum torque	10,2Nm/7500 trs/min
Maximum Power	8,2Kw/8000 trs/min
Low Engine Part	140cc YX 4 Stroke with Pull Start Clutch
High Engine Part	140cc YX 4 Stroke Cylinder 56mm
Horizontal/Vertical Motor	Horizontal
4 Stroke / 2 Stroke	4 Stroke
Engine Number	1P56FMJ