Troubleshooting
Problem
Cause
Solution
Engine is hard to start.
Propane cylinder is not properly connected. Check connection and open service valve
slowly.
Battery is weak.
Charge battery or replace.
Oil level is too low.
Check the oil level and add more if needed.
Insufficient vacuum.
Place the engine throttle in the idle position;
check the regulator vacuum hose for breaks,
a pinched hose, or a bad connection.
Coil air gap out of adjustment.
Adjust coil air gap. Contact NFE.
Spark Plug or head bolts loose.
Re-torque. Contact NFE.
Head gasket blown or valves need adjusting. Replace head gasket; adjust valves and
replace if necessary. Contact NFE.
Engine will not start.
Propane cylinder is empty.
Install properly filled cylinder.
Oil level is too low.
Check the oil level and add more if needed.
Machine is in the wrong position.
Lower machine to operating position.
Main fuse is blown.
Inspect fuse; if blown, replace.
Insufficient vacuum.
Place the engine throttle in the idle position;
check the regulator vacuum hose for breaks,
a pinched hose, or a bad connection.
Head gasket blown or valves need adjusting. Replace head gasket; adjust valves and
replace if necessary. Contact NFE.
Wires broken or disconnected.
Reconnect or replace wires. Contact NFE.
Defective coil(s).
Replace coil(s). Contact NFE.
Spark plug gap is incorrect.
Adjust gap to .025” (.64 mm).
Spark plug is defective.
Replace spark plug.
EcoSense shut the machine down.
If the light is blinking (no oxygen connection),
turn the key switch to the OFF position and
wait 30 seconds before trying again; if bad
module, contact NFE.
Engine lacks power.
Insufficient vacuum.
Place the engine throttle in the idle position;
check the regulator vacuum hose for breaks,
a pinched hose, or a bad connection.
Dirty air filter(s).
Clean or replace the primary filter (paper
element); clean or replace the secondary filter
(foam element).
Governor out of adjustment or malfunction-
ing.
Adjust governor and replace if necessary.
Contact NFE.
Leaky head gasket.
Replace head gasket. Contact NFE.
No compression.
Piston rings and/or cylinder head(s) require
replacement. Contact NFE.
Fuel mixture is too lean.
Check and adjust fuel mixture if necessary.
Contact NFE.
Valves need adjusting or replacing.
Adjust valves. Contact NFE.
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