Periodic maintenance
43
When installing the spark plug, always clean
the gasket surface. Wipe off any grime from
the threads and tighten the spark plug to the
specified torque.
CAUTION:
ECS00380
Make sure that the spark plug caps are se-
curely installed. Otherwise the spark plug
caps could be damaged due to engine vi-
bration.
ESU12900
Adjusting the engine idling
speed
CAUTION:
ECS00390
●
Be sure to have a Yamaha dealer make
this adjustment.
●
Make sure that the throttle lever moves
smoothly.
●
Make sure that the carburetor is syn-
chronized first.
1.
Remove the shroud. (See page 40 for re-
moval procedures.)
2.
Start the engine and warm it up.
3.
Turn the throttle stop screw in or out to
adjust the engine idling speed.
4.
Install the shroud.
ESU12910
Adjusting the throttle cable free
play
CAUTION:
ECS00410
Be sure to adjust the engine idling speed
first.
1.
Remove the shroud and the right side
cover. (See page 40 for removal proce-
dures.)
2.
Loosen the locknut.
3.
Turn the adjusting bolt in or out until the
specified throttle cable free play is ob-
tained.
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Spark plug tightening torque:
12.5 Nm (1.25 m·kgf, 9 ft·lb)
1. Throttle stop screw
Standard engine idling speed:
1300–1500 r/min
1. Locknut
2. Throttle cable free play adjusting bolt
3. Throttle cable free play
U8GM10E0.book Page 43 Friday, April 27, 2007 6:43 PM
Summary of Contents for Vector RS90RX
Page 1: ...OWNER S MANUAL RS90RX RS90GTX RS90GTAX RS90LTX RS90LTGTX 8GM 28199 10 LIT 12628 02 70 ...
Page 2: ...ESU10040 U8GM10E0 book Page 1 Friday April 27 2007 6 43 PM ...
Page 11: ...Safety information 5 U8GM10E0 book Page 5 Friday April 27 2007 6 43 PM ...
Page 89: ...U8GM10E0 book Page 3 Friday April 27 2007 6 43 PM ...
Page 90: ...YAMAHA MOTOR CO LTD PRINTED ON RECYCLED PAPER PRINTED IN JAPAN 2007 05 0 6 1 CR ...