Step 1 - Remove locking grip completely. Loosen the control pad, and brake lever. You will find a hex bolt on the bottom of each, and will need allen keys to loosen these three components. The bolts for these will be different sizes.
Step 2 - With the brake lever and button pad loose, scoot these items towards the center of the handlebar around an inch to make room for the throttle. Position throttle as shown below, then reinstall grip.
Notes: Leave .5mm of space between each component when tightening. Slide all components into position, then tighten starting with grip. Ensure brake lever is positioned evenly with the one on the right side. Ensure button and throttle positions are appropriate. You can snug these down, wiggle them into position, then tighten fully. Sit on the bike periodically to ensure they're in the right spot.
Step 3 - Locate Grommet on underside of frame. There is a plug for the throttle behind it.
Step 4 - Remove Grommet to expose connector. Use your nail, a pick tool, or small flat head screwdriver. Do not contact the paint on the frame. Do not scratch the frame.
Step 5 - Pull the entire harness assembly a few inches out of the frame which will expose the connector. This connector will have a black cover on it.
Step 6 - Once you can grab it, pull it towards you. There is substantial extra cable inside of the frame. The plug is yellow once the cap is removed.
Step 7 - Pass yellow connector through grommet, pull excess cable through grommet.
Step 8 - Unwrap the wire wrap on the wires going towards the handlebar, set aside. Connect yellow plug from frame to yellow connector on throttle. Make sure to align the arrows on the yellow connector as to not damage the pins. Rewrap the wires incorporating the new wire for the throttle. Reinstall grommet once this is complete. Tuck any excess wire back into frame through grommet.
User Error and damage to main harness is NOT covered under warranty.
Pay close attention.