Zero Motorcycles DS 2021, Owner'S Manual

Page: 90 / 160

General Maintenance
6.18
Drive Belt Tension Tester
The Tension Tester has a plastic measurement arm, located in a
slot. Along this slot there is a measuring scale. The point of
intersection of the measurement arm and the measuring scale
shows the tension of the belt. There is a button (clicking pad) on
the upper side of the Tension Tester, where you can secure your
finger with a rubber band holder. A spring is located underneath
this clicking pad. If a certain pressure is applied to the spring, it
makes a clicking sound.
Note: The rear fender interferes with checking the belt tension
using the Tension Tester from the top side. Belt tension can be
checked from under the motorcycle without interference.
1. Remove the key from the ignition switch.
2. Press the Tension Tester steadily to the non-cogged side of
the belt, half of the distance between the motor-driven
sprocket and rear wheel drive sprocket. The “lip” of the
tester will lead the tester on to the belt.
3. Slowly increase the pressure on the tester, until you hear a
clicking sound. Do not increase the pressure after the tester
has clicked.
4. Remove the tester carefully from the belt. Avoid rough
movements of the tester, as this would change the results of
the measurement.
5. Adjust drive belt tension if the measurement is outside the
recommended range.
Belt Pitch Recommended Tension Range
11 mm 25 kg to 76.5 kg
Zero Owner's Manual (S and DS).book Page 18 Monday, September 21, 2020 11:43 AM