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3. The spark is normal,
but the engine doesn’t
revolve normally.
There is water in the fuel.
Clean the fuel supply
system.
4. Temporarily the
engine doesn’t have
enough horsepower.
1. The ignition plug is
problematic;
2. The engine is too hot.
1. Replace the ignition
plug;
2. Let the engine cool off,
and try to avoid driving
at a high speed for a
long time.
