SANYANG INDUSTRY CO. XS125-K Service Manual page 10

D. ROTATION ROUGH (HIGH SPEED)
symptom
normal
normal
normal
no blocked
timing correct
good
inspection adjustment
ignition timing
adjustment
abnormal
valve clearance
adjustment
abnormal
check auto fuel
cup for fuel
supplied.
abnormal
carburetor blocked
blocked
valve timing
adjusting
inspection
timing incorrect
check valve spring
spring broken
loose elasticity
1.GENERAL INFORMATION
faulty CDI unit
faulty pulse generator
poor adjustment
valve seat faulty
too little fuel in the fuel tank
fuel tube, fuel filter clogged
air hole on the fuel tank colgs
auto fuel cup faulty
clean
cam sprocket aligning marks incorrect
faulty spring
cause
1-7