[Ironmike]

Thought I would post this info I came across while researching my motor cc. Not sure if it's been posted here before but here it is.


Standard Chinese motorcycle engine identification.

Example LF163FML-2M

First letter or two indicate the manufacturer. These may be omitted. LF = Lifan, ZS - Zongshen, etc..

First digit indicates the number of cylinders. 1 in the example above.

Next 2 digits indicate the bore in millimeters. 63 in the example above.

Next letter indicates cooling method. F=air cooled, M=water cooled.

Next letter indicates use. M=motorcycle

Next letter indicates displacement. J=150cc, K=175cc, L=200cc, M=250cc,

Any letters after the dash indicate model version. In the example above the 2M is the engine equipped with a balance shaft.

The 142cc engine in my little bike is 1P55FMJ-2E10 so it's a single cylinder, horizontal (P), 55mm bore, air cooled, motorcycle engine, 150cc class, model 2E10.

The 200cc engine is the Roketa is 167FML so it's a single cylinder, 67mm bore, air cooled, motorcycle engine, 200cc class.