Big Valve Lifan 140cc Pit Bike Engine Oil Cooled Motor & Carb Replace

(GENUINE LIFAN NOT KNOCKOFF!!) Horsepower is More than FOUR TIMES of stock CRF 50!! This motor is the Biggest that is being currently offered in the aftermarket industry! This Motor should fit the following models: Note: This is not a guarantee, if you are unsure, please check with your local dealer. HONDA CRF50 / CRF70 / XR50 / XR70 / Z50 / Z50R / CT70 Mini Trail / Z50 / Minitrail Monkey / XL70 ST70 / QA50 / QR50 / CL70 / SL70 / 70 Passport / CS 90 / SL 90 / ZB 50 / Due to the fact that this is a racing engine, no warranty is expressed or implied. We have not had a single problem with the engine. GENUINE LIFAN 4 Stroke 140cc ENGINE New 140cc engine from the Lifan factory. The factory claim 12bhp at the flywheel from this engine & that?s with a stock magneto and not with a rotor kit. This will replace most other pit bike engines (50cc to 125cc). These engines must be run oil cooled or with the inlet and outlets linked with a pipe otherwise the oil will not circulate the cylinder head (not supplied). ITS A WET PLATE CLUTCH ENGINE WHICH ALLOWS YOU TO KICK START WHILE THE CLUTCH IS PULLED IN. THE HEAD IS BIG VALVE WITH 23 & 27mm VALVES. IT HAS A 5 WIRE STATOR PLATE SO WILL POWER 12v LIGHTS IF FITTED TO A MONKEY BIKE ETC. 4 SPEED MANUAL GEAR BOX N1234. PLEASE NOTE THIS ENGINE MUST BE RUN OIL COOLED, IT REQUIRES EITHER THE OIL COOLER CONNECTED OR THE OIL INLET & OUTLET TO BE LINKED TO COMPLETE THE OIL CIRCULATION TO THE HEAD. IF YOU REQUIRE THIS ENGINE WITH A CARB & WIRING LOOM & OIL COOLER TAKE A LOOK AT MY OTHER LISTINGS FOR THIS PACKAGE. Description Type: 1-cylinder, horizontal, 4-stroke, oil-cooled kick start, Gear: N1234 Bore x Stroke: 55mm x 59mm Max. Power & Corresponding Speed: 8kw(7500±375) Max. Torque & Corresponding Speed: 9.5N.M(5000±250) Start Mode: kick start Compression: 9.0:1 Engine Oil: 900ml, 15W/40-SE, 4 stroke Oil GEARS: 4 SPEED MANUAL CLUTCH,  N1234 SPROCKET: 15T 428 17mm Dimension: 470 x 275 x 280mm Cylinder head silver, cylinder black, crankcase steel gray LISTING INCLUDING 1 x LIFAN 140CC ENGINE 1 x Kick Starter Lever 1 x Gear Shift Lever 1 x Manifold set Package 1x Carburetor 1x Air Filter 1x Wire harness

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