Sym MB10A7-A series Service Manual page 20

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D. Engine runs sluggish (High speed)
Check and adjustment
Check ignition timing
Normal
Check for fuel supplying
system in automatic fuel cup
Good
Check if carburetor clogged
Not clogged
To this chapter contents
Fault condition
Abnormal
Poor
Clogged
1. General Information
Probable causes
1. Malfunction of CDI
2. Malfunction of AC alternator
1. Insufficient fuel in fuel tank
2. Fuel filter clogged
3. Restricted fuel tank vent
1. Cleaning
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