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  1. #1 Chinese engine identification 
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    Does anybody know how to interpret Chinese engine model reference numbers?.

    I know the first numbers appear to indicate capacity, but sometimes the number changes not because of different displacement but to indicate that it has a balancer. What do the letters mean, for example on a number like 156FMI?

    So far I have this for the prefix numbers:

    139 is 50 cc
    147 is 90 cc
    150 is 100 cc
    152 is 125 cc horizontal engine (Honda Cub type)
    154 is 125 cc " "
    156 is 125 cc vertical or sloping single (Honda CG125 type)
    157 is 125 cc vertical with balance shaft
    161 is 150 cc
    162 is 180 cc
    169 is 200 cc
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  2. #2  
    Senior C-Moto Guru humanbeing's Avatar
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    Already posted once at chinariders BUT got deleted. I need time to translate to ENG again manually.
    The standard for M/c engine is QC/T 253-1998

    Machine translated text:
    Motorcycles and mopeds Engine Model methodology
    QC / T 253-1998
    State Administration of Machinery Industry 1998-07-13 approved the implementation of 1999-01-01
    -------------------------------------------------- ------------------------------
    1 Scope

    This standard provides motorcycles and mopeds with engine (hereinafter referred to as engines) Model methodology.

    2 reference standards

    The following standards contain provisions, through reference in this standard constitute the provisions of this standard. Time of publication of this standard, as shown in both versions have
    Efficiency. All of the standard will be amended to use the standards of the parties should explore the possibility of using the latest version of the following criteria possibilities.
    GB / T 725-1991 Product name and model of the internal combustion engine preparation rules
    GB / T 5375-1998 models of motorcycles and mopeds methodology

    3 Definition of Terms

    The criterion used by the following definitions
    3.1 natural air-cooled engine
    Use of the natural flow of the air-cooled engine cylinder and gas cylinder head, such as engine parts.
    3.2 forced air-cooled engine
    Fan generated by the mandatory use of mobile air-cooled engine cylinder and gas cylinder head, such as engine parts.

    4 Model methodology

    Engine Model by Arabic numerals (hereinafter referred to as figure) and the Chinese phonetic alphabet (hereinafter referred to letters) component. Engine Model followed including
    The following four parts:

    4.1 Department: Product features of the code for the enterprise or product line, code-named code-named, with more than three capital letters do not express, on behalf of one of product lines
    No. subject to the industry focal point for Standardization approved the record.
    4.2 Central: a few symbols from the cylinder, cylinder layout of the form of symbols, stroke symbols, bore symbols. Cylinder with one of several symbols that figure. Cylinder
    Path symbols with cylinder diameter (mm) express integer. Symbols and layout of the form of cylinder-stroke symbols, respectively, according to Tables 1 and 2 requirements.

    Table 1-cylinder arrangement of symbols

    Symbolic meaning
    Unsigned oblique single-cylinder, multi-cylinder in-line oblique
    V V-type
    P Horizontal
    Table 2-stroke symbols

    Symbolic meaning
    Unsigned four-stroke engine
    E Two-Stroke Engine

    4.3 rear
    The rear of the characteristics of symbols from the cooling mode, the engine uses the characteristics of symbols and the name of the engine displacement symbols. Cooling characteristics of symbols according to Table 3 Regulation
    Set.

    Table 3 Characteristics Symbol cooling method

    Symbolic meaning
    Unsigned water-cooled
    F natural air-cooled
    Q forced air-cooled
    Y oil-cooling

    4.3.1 Characteristics of the engine uses symbols: fixed for the letter "M".
    4.3.2 the name of the engine displacement symbols: According to GB / T 5375-1998 on behalf of the provisions of division of displacement, according to the provisions of Table 4 letters.
    4.4 tail
    Tail for the design and modified code. Design code to use Arabic numerals 1,2,3 ... ... followed by express order of engine design, when design, code-named 1
    Can be omitted. Modified code to use capital letters A, B, C, D ... ... followed by express order of the original engine type modifications. Design and modified code to use symbols "-"
    And in front of symbols separated.

    Table 4 on behalf of emission symbols

    Symbol symbol engine displacement engine the name of the name of displacement
    A <50 N 300
    B 50 P 350
    C 60 Q 400
    D 70 R 500
    E 80 S 600
    F 90 T 650
    G 100 U 700
    H 110 V 750
    I 125 W 800
    J 150 X 900
    K 175 Y 1000
    L 200 YG 1100
    M 250 YL ≥ 1200

    5 Model Example
    Example 1: single-cylinder, oblique style, four-stroke, bore 57.3mm, natural air-cooled, motorcycle used, the nominal capacity 125mL, 2nd design
    Engine model: 157FMI-2

    Example 2: Chongqing Huawei Industrial Co., Ltd. Production of single-cylinder, oblique style, four-stroke, bore 47mm, natural air-cooled, motorcycle used, the nominal
    Displacement 90mL, 1st design engine models are: HW147FMF

    Example 3: K series, single-cylinder, oblique style, four-stroke, bore 57mm, natural air-cooled, motorcycle used, the nominal capacity 125mL, 1st
    The design of the engine model K157FMI
    Attached Files
    Last edited by humanbeing; 02-24-2009 at 01:53 AM.
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  3. #3  
    Administrator-tron CrazyCarl's Avatar
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    Hbing,

    Thanks for re-translating the info... I know that takes a lot of work!

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  4. #4  
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    Many thanks humanbeing. I'm amazed that something that useful can be deleted, but I've noticed that chinariders only keep threads for so long. Not a good idea, as a lot of knowledge and tips are lost that way.

    Other forums have an archive so not everything is lost.
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  5. #5  
    Senior C-Moto Guru humanbeing's Avatar
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    I think the above text translated by google is readable to native user finally.
    Translation to proper grammar will be done in my spare time slowly.
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  6. #6 Re: Chinese engine identification 
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    I have a E22 clone engine with the model # HW139FMB. This thread helped out some, but I can't seem to track down much information. Any additional info would be helpful! Thanks, -65Cub
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  7. #7 Re: Chinese engine identification 
    Senior C-Moto Guru humanbeing's Avatar
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    Quote Originally Posted by 65Cub View Post
    ... model # HW139FMB. This thread helped out some, but I can't seem to track down much information. Any additional info ...
    This? http://ccn.mofcom.gov.cn/19738/p194894.html State Owned / http://ccn.mofcom.gov.cn/19738
    Chongqing is small petrol engine "capitial" in world
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  8. #8 Re: Chinese engine identification 
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    hi i have a dirt bike but cant find out what engine it has can anybody help please
    markings it has are E22 on one side and DJ152FMH *050704525* on the other what cc is it any one
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  9. #9 Re: Chinese engine identification 
    Senior C-Moto Guru humanbeing's Avatar
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    E22 is a family of Honda engine | DJ often refer to http://www.dajiangmotor.com/about.asp | the cc can figured out by urself using above infos | *???* is just engine serial no.
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  10. #10 Re: Chinese engine identification 
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    Hello. I've taken this information and made it into a diagram to make it easier to understand, please tell me if I have made any mistakes.

    Edit: updated information with examples

    engineID.jpg

    examples.jpg
    Attached Images
    Last edited by spencer2004; 02-24-2012 at 04:46 PM.
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