Robalo 220 - Engine Cranks but will Not Start (Fuel System); Low Cranking Speed; Starter will Not Crank Engine(S)

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PROBLEM CAUSE SOLUTION
Engine cranks but will not start (Fuel system)
Low cranking speed
Starter will not crank engine(s)
1. Lack of fuel
2. Improper starting procedure
3. Clogged fuel filter
4. No fuel reaching carburetor (providing
all fuel valves are open)
5. Engine flooded
6. Contaminated fuel
7. Spark plug(s) fouled or broken
1. Loose or dirty electrical connections or
damaged wiring
2. Bad battery
3. Engine oil too heavy for prevailing
temperatures
1. Discharged battery
2. Corroded battery cables
3. Loose connection in starting circuit
4. Defective starter switch
5. Starter motor brushes dirty
6. Jammed “starter drive”
1. Clean fuel filter, check fuel level; check
anti-syphon valve, if equipped.
2. See Engine Owner/Service Manual to
review starting procedure.
3. Check and replace fuel filter.
4. Check fuel pump, fuel pump filter, carbu-
retor fuel filter, and fuel tank line for
cracked flanges or restricted fittings.
5. Do not attempt to start engine for at
least 5 minutes. For hot engine, fully
advance throttle, (make sure throttle
lever is in neutral) and crank engine.
6. Inspect for water or other contaminants
in fuel. If contaminated, drain tank and
flush with fresh fuel.
7. Clean, adjust gap, or replace.
1. Check all related electrical connections
and wires.
2. Test battery (See Engine Owner/Service
Manual).
3. Drain oil and refill with correct grade and
viscosity oil (See Engine Owner/Service
Manual).
1. Charge battery.
2. Clean battery terminals.
3. Check and tighten all connections.
4. Replace switch.
5. Clean or replace brushes.
6. Loosen starter motor, then free
stuck gear.