Lifan LF167FMM-M-LCSLifan 250 cc engine with kickstart and long counter shaft

Specs:

Type…CCW250OHV single cylinder four stroke push rod

Air cooled

Counter balanced

Bore…67.0mm

Stroke…65.0mm

Displacement…229.0cc

Compression ratio…9.2:1

Maximum power…11.5 kW (15.4 HP) @7000RPM

Maximum torque…16.0 N·m @6000 RPM

Engine maximum speed…8500RPM

Idle speed…1500RPM

Minimum fuel consumption…354g/kW·h

Starting …Electric and kick

Ignition type…CDI

Ignition advance …15° @1500RPM

Spark plug … DR8EA

Spark plug gap…0.6-0.8mm

Intake valve open (BTDC)…10°

Exhaust valve open (BBDC)…40°

Intake valve closed (ABDC)…40°

Exhaust valve closed (ATDC)…10°

Intake valve clearance…0.08mm

Exhaust valve clearance…0.13mm

Clutch…Wet multi-plate

Transmission…Constant mesh, five-speed

Primary reduction 21/70…………………………………………………. 3.333

First gear ratio 11/32……………………………………………………… 2.909

Second gear ratio 15/28…………………………………………………. 1.867

Third gear ratio 19/25…………………………………………………….. 1.316

Fourth gear ratio 23/23………………………………………………….. 1.000

Fifth gear ratio 24/20……………………………………………………… 0.833

Final drive…………………………………………………………… 520 roller chain

Front sprocket…13T

Rear sprocket…36T

Fuel…Unleaded gasoline

Minimum fuel octane…86 (R+M/2)

Carburetor model…KF PZ30

Float height 14mm

Pilot jet #38

Main jet #100

Needle #K140

Mixture screw 1.5 turns

Air filter…Pleated paper

Exhaust emission system … 3 x three way catalyst in muffler

PAIR air injection

ENGINE lubrication…Pressure-splashed

Oil pump type…Inner/outer rotor

Shift schedule

From 1st into 2nd 12mph (20km/h)

From 2nd into 3rd 19mph (30km/h)

From 3rd into 4th 25mph (40 km/h)

From 4th into 5th 31mph (50km/h)

From 5th to 4th 31mph (50km/h)

From 4th to 3rd 25mph (40km/h)

From 3rd to 2nd 19mph (30km/h)

From 2nd to 1st 12mph (20km/h)

Shifting up schedule

Smooth operation and best fuel economy can be achieved by using this suggested shift schedule.

Shifting down schedule

Disengage clutch when engine speeds drop below 6mph (10km/h)