Spark Plug Inspection And Replacement; Compressor Air Intake Filter - Mercury 200 Optimax DTS Owner's Manual

Spark Plug Inspection And Replacement

Avoid serious injury or death from fire or explosion caused by damaged spark plug boots. Damaged spark plug
boots can emit sparks. Sparks can ignite fuel vapors under the engine cowl. To avoid damaging spark plug
boots, do not use any sharp object or metal tool such as pliers, screwdriver, etc. to remove spark plug boots.
1. Remove the spark plug leads. Twist the rubber boots slightly and pull off.
2. Remove the spark plugs to inspect. Replace spark plug if electrode is worn or the insulator is rough, cracked,
broken, blistered or fouled.
3. Set the spark plug gap to specification.
Spark Plug
Spark plug gap
4. Before installing spark plugs, clean off any dirt on the spark plug seats. Install plugs finger tight, and then
tighten 1/4 turn or torque to specifications.
Description
Spark plug

Compressor Air Intake Filter

The filter should be changed every 100 hours of operation, or once a season.
IMPORTANT: Never run the engine without the air filter.
REMOVAL
1. Remove the hose clamp and pull the hose off the air filter.
MAINTENANCE
WARNING
!
ob00375
ob00423
0.80 mm (0.031 in.)
Nm
27
65
ob00424
lb. in. lb. ft.
20