6-13
PERIODIC MAINTENANCE AND MINOR REPAIR
6
3. Remove the spark plug as
shown, with the spark plug
wrench included in the owner’s
tool kit.
1
1.
Spark plug wrench
To install the spark plug
1. Measure the spark plug gap with
a wire thickness gauge and, if
necessary, adjust the gap to
specification.
2. Clean the surface of the spark
plug gasket and its mating sur-
face, and then wipe off any grime
from the spark plug threads.
3. Install the spark plug with the
spark plug wrench, and then
tighten it to the specified torque.
a
a.
Spark plug gap
To check the spark plug
1. Check that the porcelain insula-
tor around the center electrode
of the spark plug is a medium-to-
light tan (the ideal color when the
scooter is ridden normally).
NOTE:
If the spark plug shows a distinctly
different color, the engine could be
defective. Do not attempt to diagnose
such problems yourself. Instead,
have a Yamaha dealer check the
scooter.
2. Check the spark plug for elec-
trode erosion and excessive car-
bon or other deposits, and
replace it if necessary.
Specified spark plug:
DR8EA (NGK)
Spark plug gap:
0.6–0.7 mm
5SJ-28199-E1 7/11/02 11:03 AM Page 62
Содержание MAJESTY YP250A
Страница 1: ...OWNER S MANUAL 5SJ 28199 E1 YP250A ...
Страница 2: ...5SJ 28199 E1 7 11 02 11 03 AM Page 112 ...
Страница 8: ...5SJ 28199 E1 7 11 02 11 03 AM Page 6 ...
Страница 12: ...5SJ 28199 E1 7 11 02 11 03 AM Page 10 ...
Страница 13: ...DESCRIPTION Left view 2 1 Right view 2 2 Controls and instruments 2 3 2 5SJ 28199 E1 7 11 02 11 03 AM Page 11 ...
Страница 41: ...PRE OPERATION CHECKS Pre operation check list 4 1 4 5SJ 28199 E1 7 11 02 11 03 AM Page 39 ...
Страница 96: ...5SJ 28199 E1 7 11 02 11 03 AM Page 94 ...
Страница 97: ...SCOOTER CARE AND STORAGE Care 7 1 Storage 7 4 7 5SJ 28199 E1 7 11 02 11 03 AM Page 95 ...
Страница 103: ...SPECIFICATIONS Specifications 8 1 Conversion table 8 5 8 5SJ 28199 E1 7 11 02 11 03 AM Page 101 ...
Страница 114: ...5SJ 28199 E1 7 11 02 11 03 AM Page 112 ...
Страница 115: ...5SJ 28199 E1 7 11 02 11 03 AM Page 112 ...
Страница 116: ...PRINTED ON RECYCLED PAPER PRINTED IN JAPAN 2002 8 0 1 1 YAMAHA MOTOR CO LTD E ...