Yamaha WaveRunner VX 700, Service Manual

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9-2
1
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4
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8
9
A
Symptom 1: Engine will not start (engine cranks).
Symptom 2 Cause Checking step
See
page
Throttle valve does
not move properly Throttle cable installed
incorrectly Adjust the throttle lever free play. 3-2
Throttle valve malfunction Check the carburetor. 4-14
Discharged battery Battery performance
decrease Check the battery voltage and spe-
cific gravity. 3-8
Lighting coil malfunction Measure the lighting coil output
peak voltage. 7-9
Measure the lighting coil resis-
tance. 7-9
Check the lighting coil wiring har-
ness leads for continuity. WD
Rectifier regulator mal-
function Measure the rectifier regulator out-
put peak voltage. 7-9
Check the rectifier regulator wiring
harness leads for continuity. WD
Short, open, or loose con-
nection in charging circuit Check the battery cable and termi-
nal for proper connection. 7-2
Check the wiring harness. WD
Spark plug does not
spark (all cylinders) Engine shut-off cord clip
not installed Check that the engine shut-off cord
clip is installed properly. 7-10
Engine stop switch mal-
function Check the engine stop switch. (left
handlebar switch) 7-10
Pickup coil malfunction Measure the pickup coil output
peak voltage. 7-8
Measure the pickup coil resistance. 7-8
Short, open, or loose con-
nection in pickup coil cir-
cuit Check the pickup coil wiring har-
ness leads for continuity. WD
CDI unit malfunction Measure the CDI unit output peak
voltage. 7-6
Measure the CDI unit resistance. 7-6
Check the CDI unit wiring harness
leads for continuity. WD
Charge coil malfunction Measure the charge coil output
peak voltage. 7-7
Measure the charge coil resistance. 7-7
Check the charge coil wiring har-
ness leads for continuity. WD
Short, open, or loose con-
nection in ignition coil cir-
cuit Measure the ignition coil resis-
tance. 7-6
Check the ignition coil wiring har-
ness leads for continuity. WD
WD: See the wiring diagram.
Engine unit troubleshooting