Lifan 138cc Motor Engine XR50 CRF50 Z50 XR 50 70 CRF 50
Description:
Brand New Lifan 1P54FMI 138cc high performance race engine. Upgrade your stock 50cc to this 138cc monster, you can feel the power difference immediatly. Ride faster, jump higher.
LIFAN offers with this engine of the newest generation all tuning- and racing-fans best quality and highest performance state-of-the-art!
The engine comes with a high-qualtiy cylinder head made from aluminium, a reinforced kickstarter axle and extra large valves and canals!
Furthermore it comes with a High quality 4-disc clutch!
With 6.5 kW by 7500 rpm the engine reaches more than the triple performance of a standard CRF50 engine.
Specifications:
Single cylinder, 4-stroke, 2 valves, OHC racing head,air cooled, 138cc
Bore x Stroke: 54mm x 54mm, this is a 'square' engine for best balance between power and torque
Valve Sizes: 27mm intake, 23mm exhaust
Displacement: 123.7cc
Compression Ratio: 9.47:1
Carburettor: 25mm, quality KF (Japanese), double float, racing
Ignition: CDI, 12 volt, permanent magnetic stator
Maximum Power: 8.5 Kw DIN @ 9,500 rpm
Rated Power: 6.5 Kw @ 7,500 rpm
Torque: at least 8.8 Nm @ 5,500 rpm
Gears: 4-speed, manual clutch, 1-N-2-3-4, 1 down and 3 up.
Gear Ratios: 1st 2.833:1, 2nd 1.706:1, 3rd 1.238:1, 4th 0.958:1
Final Drive: 14 teeth both #420 and #428 front sprockets included
Lubrication: 1.1 litres, 5W/40 4-stroke motorcycle oil, pressure and splash
Fuel: Unleaded
Package Contains:
Buyer will receive Lifan 138cc Motor, Carbruetor, Air filter, Intake manifold, intake gasket, Shifter, Kick Starter, CDI, Sparks Plug and Ignition Coil. This pakcage has almost everything, excepts a bike to bolt on.
This Motor should fit the following models:
Note: This is not a guarantee, if you are unsure, please ask your local dealer.
HONDA CRF50 /CRF70 /XR50 / XR70 / Z50 / Z50R / CT70 Mini Trail / Z50? Minitrail Monkey / XL70 ST70 / QA50 / QR50 / CL70 / SL70 / 70 Passport / ST 90K2 / ST 90K1 / 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.






