This is from the sheet included with the box:
Operation and Tuning
With the sled idling you should see #1 Green LED light on. To adjust the colors just push the mode button real fast. The color will cycle from Green to Yellow, Red, Yellow/Blue, and Red Blue. Once you get the color that you want you can move the light, the farther to the right you go the more fuel you are adding to that color.
Programming the LED’s
If the 2nd light is on then you are in setting 2. If 2 lights are on then you are ½ way. Example: 2nd and 3rd lights equals setting 2 ½. 4th and 5th lights equal setting 4 ½. To adjust the next color just tap the mode button, using the + or – sign to get your desired setting.
Mode 1- GREEN – Idle/Cruise Mixture level.
Mode 2- YELLOW – Needle Enrichment
Mode 3- RED – Main Jet
Mode 5- Yellow/Blue – Accelerator Pump, Adjust to riding (set at 2 or 3 for Hard acceleration, 1.5, 2 for those light on the throttle)
Mode 6- Red/Blue - Altitude Compensation set at 1 for sea level, aprox. 4-5 for 10,000 ft.
Radical changes to the accelerator settings can cause the sled to run rich. You can always go back to stock when all the colors are on the #1 setting. You mainly use the first three colors. For the accelerator to recognize that you are making a change, you must move the green light, even if you move it and then put it right back where it was.
GHT-R Pipe, with stock air box
Green 2nd light
Yellow 3rd light
Red 2nd light
Yellow/Blue 2nd light
Red/Blue 1st light
Pipe with K&N Filters
Green 2nd light
Yellow 3rd light
Red 6th or 7th light
Yellow/Blue 2nd light
Red/ Blue 1st light
I have found my sled to run better with small adjustments to the red light! I hope this helps!