McCulloch RVM110 - TROUBLESHOOTING; Does not start; Loss of power; Engine stops or does not idle smoothly

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Does not start 1. Out of fuel. 1. Fill fuel tank as shown in the “Pre-
Operation” section of this manual.
2. Spark plug wire is disconnected. 2. Connect wire to spark plug.
3. Dirty air filter. 3. Clean or replace air filter as shown in
the “Maintenance” section of this
manual.
4. Stale fuel. 4. Empty fuel tank and drain carburetor
bowl; then refill tank with fresh,
clean gasoline.
5. Dirt or water in fuel. 5. Empty fuel tank and drain carburetor
bowl; then refill tank with fresh,
clean gasoline.
6. Dirty or bad spark plug. 6. Clean or replace spark plug.
7. Bad spark plug wire. 7. Replace spark plug wire.
8. Valves out of adjustment. 8. Adjust valve clearance
(see Product Specifications).
9. Vent in filler cap clogged. 9. Clean filler cap vent.
10. Carburetor float is 10. Clean or replace the carburetor float.
sticking or damaged.
11. Control bar in released position. 11. Depress control bar to handle.
12. Control bar defective. 12. Replace control bar.
Loss of power 1. Dirty air filter. 1. Clean or replace air filter as shown in
the “Maintenance” section of this
manual.
2. Dirt or water in fuel. 2. Empty fuel tank and refill tank
with fresh, clean gasoline.
3. Valves out of adjustment. 3. Adjust valve clearance
(see Product Specifications).
4. Muffler clogged or damaged. 4. Clean or replace muffler.
5. Oil level too high. 5. Check oil level as shown in the
“Maintenance” section of this manual.
Engine stops 1. Dirty air filter. 1. Clean or replace air filter as shown in
or does not “Maintenance” section of this manual.
idle smoothly 2. Dirt or water in fuel. 2. Empty fuel tank and refill tank
with fresh, clean gasoline.
3. Dirty or bad spark plug. 3. Clean or replace spark plug.
Engine is 1. Cooling fins clogged. 1. Clean cooling fins.
overheating 2. Oil level too low. 2. Add oil as shown in the
“Maintenance” section of this manual.
3. Muffler clogged or damaged. 3. Clean or replace muffler.
Starter rope 1. Engine flywheel brake is on 1. Depress control bar to upper handle
hard to pull when control bar is released. before pulling starter rope.
2. Bent crankshaft. 2. Contact an authorized Service
Center for repairs.
Engine is 1. Oil level too high. 1. Check oil dipstick. If oil level is over
emitting bluish upper mark, drain oil until at
black smoke recommended level.
2. Dirty air filter. 2. Clean or replace air filter as shown in
“Maintenance” section of this manual.
TROUBLESHOOTING - See appropriate section in manual unless directed to an
authorized Service Center.
TROUBLESHOOTING
PROBLEM CAUSE CORRECTION