Toro Reelmaster 6500–D Service Manual page 46

Low Power
Problem
Engine does not give full power
Irregular idling
Speed fall-Off
Engine speed rises to maximum
Engine
Possible Causes
Injection pump timing
Seized piston rings
Defective injector(s)
Air intake restricted
Valve leaks
Clogged fuel filter
Injection pipe restriction due to excessive tightening
of unions
Defective injection pump
Defective injection pump
Air getting into fuel system
Idling stop out of adjustment
Leaky injection pipe unions
Clogged fuel filter
Defective injection pump
Defective injection pump
Throttle cable jammed
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