4.18. SPARK PLUG INSPECTION
If the plug is oily or has carbon built up it, have it
cleaned, preferably in a sand-blasting device, and
then clean off any abrasive particles. The plug may
also be to other suitable tool.
If the insulator is cracked, replace the plug. Use the
standard plug.
4.19. BATTERY INSPECTION
Checking the battery voltage if the cold engine
start-ambient temperature below -180C (00F).
Refer to "starting a cold engine" for proper operation.
(See CH 6.)
43