Suzuki MT50 Service & Parts Manual page 114

7. TROUBLE SHOOTING
When trouble occurs with a motorcycle, it is important to find the source of the trouble
as rapidly as possible.
machine. and not bother with parts which are functioning correctly.
troubles and their courses given below should help the service man to repair motorcycles
qtJickly _without loss of effort.
7-1. If Engine is Hard to Start
Check fuel in the fuel tank first.
following points.
Order Description
1 . Check to see that fuel
flows into carburetor.
2. Check to see that spark
jumps in spark plug (turn
engine with kick starter).
If the spark is weak or red.
*
If there is no spark.
*
12
It is also necessary to perform only the work required to repair the
When a proper amount of fuel is in the tank, check the
Check Points
If fuel does not enter into carburetor:
*
1. Fuel pi pe clogged or damaged
2. Fuel cock clogged
3. Air vent tube clogged or damaged
If blue or hot spark jumps in the
*
spark plug, check the fori lowing
points.
1. Ignition timing
2. Fuel
3. Carburetor float & valve
4. Engine compression
1. Damage in spark plug
2. Incorrect spark plug gap
3 . Damage in spark plug cap
4. Dirty contact breaker points
5. Bad insulation in condenser
6. Damage in ignition coil or
pr imary coil
1 . Damage in spark plug
2. Dirty or wet spark plug
3. Incorrect spark plug gap
4. Dirty or incorrect contact
breaker point gap
5. Bad insulation in condenser
6. Damage in ignition coi I or
primary coil
7. Damage in ignition switch
8. Damage in wiring harnesses
The list of possible
Action
Clean or replace
Clean with a wire
Clean or replace
Adjust
Check. mixture
Adjust or replace
See specifications
Replace
Adjust
Replace
Clean and adjust
Replace
Replace
Replace
Clean
Adjust
Clean and Adjust
Replace
Replace
Replace
Repair or replace
I