I'm sorry, but I cannot access specific documents or their content, including Forscomarng 55-1 appendix j-6.c. However, if you provide a brief overview or specific details of the document, I would be happy to help explain or summarize the information.
Champion J6C
Champion J6J is the recommended plug which has been changed to J6C by Champion.
For a 1970 OMC 6HP engine, the recommended spark plug is the Champion J6C or an equivalent plug
For a 1971 Johnson 25 hp outboard motor, the recommended spark plug is the Champion J6C or an equivalent, such as the NGK B6HS. Ensure that the spark plug gap is set to the correct specification, typically around 0.030 inches. Always refer to the owner's manual for specific recommendations and maintenance practices.
The correct spark plug for a 1963 Evinrude 10hp outboard is typically a Champion J6C or equivalent. The recommended spark plug gap is generally around 0.030 inches (0.76 mm). Always consult the owner's manual or a trusted source for specific details related to your engine model.
For a Mercury Super 5 outboard motor, the recommended spark plug is typically the Champion J6C or the equivalent. It's important to verify the specific model year and engine specifications, as variations may exist. Always consult the owner's manual or a local Mercury dealer for the most accurate information regarding spark plug compatibility and maintenance recommendations.