ENGINE TROUBLESHOOTING - ENGINE RUNS ROUGH OR MISFIRES
Perform cylinder balance test
DO NOT smoke or permit any open flame in area of SSL while you are servicing fuel system. Be sure hose nozzle is
grounded against filler tube during refueling to prevent static electricity.
DO NOT perform fuel system checks, inspections, or maintenance while smoking or near fire, flames, or sparks. Fuel
Wear fuel-resistant gloves and eye protection when handling fuels. If exposed to fuel, promptly wash exposed skin and
change fuel-soaked clothing.
ALWAYS shut down engine before refueling.
Failure to follow these warnings may result in injury or death to personnel or damage to equipment.
Check fuel injection lines for
Replace fuel injection lines
damage, leaks, or obstructions
Test injector nozzle by
performing cylinder balance
Replace fuel injectors
Does misfire follow
swap that injector with a known
Check torque on flywheel bolts
Remove and install flywheel bolts