2004 SR Johnson 4 Stroke 9.9-15HP Outboards Service Repair Manual P/N 5005655, Page 32Get this manual

2004 SR Johnson 4 Stroke 9.9-15HP Outboards Service Repair Manual P/N 5005655, Page 32

Quality of the image is intentionally reduced!

PERIODIC MAINTENANCE SPARK PLUG
(0.0310.035 in)

Thickness gauge

CONDITION OF ELECTRODE Inspect electrode for worn burnt condition If it is extremely worn burnt, replace