Quantcast Table  4-2.  Unit  Troubleshootlng  (Cont) - TM-5-3895-360-13_38

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TM  5-3895-360-13 Table  4-2.  Unit  Troubleshootlng  (Con’t). PROBLEM PROBABLE CAUSE TEST PROCEDURE/REMEDY Engine will not start (Con’t). d. Fuel filter is dirty or clogged. d. Remove fuel filter (see paragraph 7-6) and clean or replace as nec- essary. e. Breaker points are out of adjust- e. Adjust breaker points (see para- ment. graph 9-2). 2. Engine is hard to start. a. Spark plug is defective or fouled. a. Replace spark plug (see para- graph 9-3). b. Spark plug is not firing. b. Check for incorrect, defective, or fouled spark plug. Clean and ad- just  spark  plug  gap  as  neces- sary.  Check  for  spark  by  perform- ing  the  following.  Remove  spark plug (see paragraph 9-3) and at- tach lead wire and ground plug against cylinder. Crank engine to determine if spark will jump gap on plug. If no spark or weak spark,  remove  flywheel  (see paragraph 9-2) and check wiring, connections, hi-tension  lead wire, lead wire spark plug con- nector, coil, condenser,  and points. c. Carburetor gasket is leaking. c.  Replace  carburetor  gasket  (see paragraph  7-1). d. Carburetor is out of adjustment. d.  Adjust  carburetor  (see  paragraph 7-2). e. Breaker points are out of adjust- e. Adjust breaker points (see para- ment. graph 9-2). f. Reed valve is open or broken. f. Remove reed valve and inspect (see  paragraph  6-4)  and  adjust  or replace  as  necessary. 3. Engine starts but will not con- s. Spark plug is defective or fouled. a. Replace spark plug (see para- tinue to run. graph 9-3). b. Carburetor is out of adjustment. b.  Adjust  carburetor  (see  paragraph 7-2). c. Fuel line is restricted. c.  Remove  fuel  line  from  carburetor (see paragraph 7-6) and see if fuel flows freely. Clear restriction or replace fuel line as necessary (see paragraph 7-6). 4-7


 


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