MTD SX800 - Troubleshooting

TROUBLESHOOTING
17
8. TROUBLESHOOTING
ENGINE WILL NOT
START
Possible Cause Correction
1. Choke
Equipped
Engine
Throttle Lever in wrong
position
Move Throttle Lever to the
choke/start position unless
engine is warm. (page 7)
2. Primer
Equipped
Engine
Incorrect use of Primer Bulb
Push Primer Bulb firmly 3
times. (page 7)
3. Check fuel
Out of fuel Refuel (page 11)
Bad fuel; engine stored
without treating or draining
fuel, or refuelled with bad fuel
Drain fuel tank and
carburettor. Refuel with fresh
fuel. (page 15)
4. Remove and
inspect spark
plug
Spark plug faulty, fouled, or
improperly gapped
Gap, or replace spark plug.
(page 13)
Spark plug wet with fuel
(flooded engine)
Dry and reinstall spark plug.
Start engine with control lever
in RUN position
5. Take engine to
an authorised
servicing
dealer
Fuel filter clogged, carburettor
malfunction, ignition
malfunction, valve stuck, etc
Replace or repair faulty
components as necessary
ENGINE LACKS
POWER
Possible Cause Correction
1. Check air filter Filter element(s) clogged
Clean or replace filter
element(s). (page 11,12,13)
2. Check fuel
Out of fuel Refuel (page 11)
Bad fuel; engine stored
without treating or draining
fuel, or refuelled with bad fuel
Drain fuel tank and
carburettor. Refuel with fresh
fuel. (page 15)
3. Take engine to
an authorized
servicing dealer
Fuel filter clogged, carburettor
malfunction, ignition
malfunction, valve stuck, etc
Replace or repair faulty
components as necessary
ENGINE
OPERATES
ERRATICALLY
Possible Cause Correction
1. Check spark plug
Spark plug is defective
Install new, correctly gapped
plug
Spark plug gap is incorrect Set gap (page 13)
2. Check air cleaner
Air cleaner element is dirty
Clean air cleaner element
. (page 11,12,13)