TEST OR INSPECTION
3. ENGINE LACKS POWER AND/OR SMOKES BLACK
Operation at high altitudes or in cold ambient temperatures may
cause this malfunction.
Step 7. Check for missing or too many gaskets installed under fuel injector.
Remove fuel Injector and install proper number of gaskets. (Para. 5-4)
Step 2. Check for faulty fuel injector.
Step 3. Check fuel pump for improper adjustment or defective condition.
Step 4. Check adjustment of injection timing.
Step 5. Check for low oil pressure caused by dirt in pressure relief valve of oil pump.
Remove oil pump, clean and reinstall pump or replace pump (Para. 5-18).
Step 6. Check for defective oil pump.
Step 7. Check for excessive carbon on piston and cylinder head.
Remove and clean carbon from piston and cylinder head (Para. 5-8 and 5-12).
Step 9. Check for worn cylinder and or piston.
Replace cylinder and piston assembly (Para. 5-11 and 5-12).
4. ENGINE LACKS POWER AND/OR SMOKES BLUE
Step 1. Engine breather valve clogged.
Step 2. Check for defective oil seal at intake valve.
Step 3. Check for worn valves and/or valve guides.