KYMCO AK 550 Service Manual page 444

14.Wheels
AK 550
Step 2-2: Measure the belt tension
P.S. distance C vs. tension (for reference only)
18.8mm --- (1300~1700N)
19.2mm --- (1100~1500N)
~1. Probe of Sonic Tension meter should be parallel to the belt as shown above
pictures.
~2. Distance between probe and belt is approx. 1cm, location as shown above
pictures.
~3. Appropriately hit the belt with metal tool.
~4. Tension reading should be 1300~1700N(brand new, after running
1000~1400N).
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