Spark Plug - HYOSUNG GF125 Service Manual

2-7 PERIODIC MAINTENANCE AND TUNE-UP PROCEDURES

SPARK PLUG

Inspect Initial 1,000km and 5,000km Replace Every 10,000km
Remove the carbon deposits with a wire or pin and
adjust the spark plug gap to 0.7-0.8mm, measuring with
a thickness gauge.
When removing carbon deposits, be sure to ovserve the
appearance of the plug, noting the color of the carbon
deposits. The color observed indicates whether the stan-
dard plug is suitable or not. If the standard plug is apt to
get wet, a hotter plug should be used. If the standard
plug is apt to overheat(porcelain is whitish in appear-
ance), replace with a colder one.
TYPE
SPARK PLUG SPECIFICATION
Hot type
Standard
Cold type
GOLDEN C7EA-9
GOLDEN C8EA-9
GOLDEN C9EA-9
0.7-0.8㎜