17
Is the engine overheating?
Engine is rough at all speeds.
May also have black smoke
and/or unburned fuel at the
exhaust.
Engine is knocking.
Operator is overworking the unit.
Carburetor mixture is too lean.
Improper fuel/oil ratio.
Fan, fan cover, cylinder fins dirty or
damaged.
Carbon deposits on the piston or in the
muffler.
Clogged air filter.
Loose or damaged spark plug.
Air leakage or clogged fuel line.
Fuel is old or contaminated.
Piston seizure.
Faulty carburetor and/or diaphragm.
Overheating condition.
Improper fuel.
Carbon deposits in the combustion
chamber.
Cut at a slower rate.
Consult with an authorized Shindaiwa
dealer.
Refill with clean fresh unleaded gasoline with
a pump octane of 87 or higher, mixed with
a Premium 2-cycle Engine Oil at a 50:1
gasoline/oil ratio.
Clean, repair or replace as necessary.
Consult with an authorized Shindaiwa
dealer.
Clean or replace the air filter.
Tighten or replace.
Repair or replace filter and/or fuel line.
Refill with clean fresh unleaded gasoline with
a pump octane of 87 or higher, mixed with
a Premium 2-cycle Engine Oil at a 50:1
gasoline/oil ratio.
Consult with an authorized Shindaiwa
dealer.
Consult with an authorized Shindaiwa
dealer.
See "Overheating" above.
Check fuel octane rating; check for presence
of alcohol in the fuel. Refuel as necessary.
Consult with an authorized Shindaiwa
dealer.
Low Power Output
Troubleshooting Guide
(continued)
What to check Possible Cause
Remedy