Yamaha SRX700D - Yamaha Power Valve System (Y.p.V.s.) Adjustment

2-15
INSP
ADJ
8
0
9
3
2
6
4
7
5
SDN2255
SDN2260
SDN2250
YAMAHA POWER VALVE SYSTEM (Y.P.V.S.) ADJUSTMENT
YAMAHA POWER VALVE SYSTEM (Y.P.V.S.)
ADJUSTMENT
WARNING
When adjusting the valve clearance, do not oper-
ate the engine.
1. Remove:
• Y.P.V.S. valve assembly 1
2. Adjust:
• Y.P.V.S.
Adjustment steps:
• Remove the Y.P.V.S. check coupler cap 1.
• Connect the Y.P.V.S. adjustment coupler 2 to
the Y.P.V.S. check coupler 3.
• Connect the Y.P.V.S. adjustment coupler
leads as follows.
Y.P.V.S. (+) adjustment coupler lead 4 →
Battery (+) terminal 5
Y.P.V.S. (–) adjustment coupler lead 6 →
Battery (–) terminal 7
Y.P.V.S. adjustment coupler:
YS-43092
NOTE:
• When battery power is applied, the Y.P.V.S.
valve should fully open.
• If the valve does not fully open, check the
Servo motor. Refer to “YAMAHA POWER
VALVE SYSTEM (Y.P.V.S.)” in CHAPTER 8.
• Slide back the adjuster covers 8.
• Loosen the locknuts 9.
• Turn the adjusting nuts 0 in or out until the
specified clearance is obtained.
SDN2270
1