| Home | Store | Classifieds | Tech Tips | Trails | Forum |
| 
| |
| Tech Tips Index > Suzuki King Quad 450/700/750 | Sign up or Logon | ||
VDI Tuning Guide, by Dr Z - 700/750by Glenlivet, 2007-10-24This guide is kindly provided by Dr Z, based on the official VDI instructions and Lyle's replies in the thread: The First Batch To make adjustments to the VDI map, replace the value in the field you want to adjust with your new number as suggested in this guide. Keep in mind when you change a value on the application, make sure you click out of the cell, or it won't update the map (the screen shows the new value, map contains the old). Once you click somewhere else on the screen, the program updates the map. Then save the now changed map. Now you can write the new map to the pod and then transfer the map from the pod to the Copperhead unit for testing. *Note! You must 'save' the changes you make or you will lose them when you close the Copperhead EFI program. You cannot retrieve map settings from the VDI ECU itself. Tip: Use the 'save as' provision when first saving a map you have changed, and give your changed map a file name distinct from that of the original VDI provided map (even if just by adding a single letter or number). The newly changed map will now appear with the original in the same folder, for future retrieval. This way you will retain the unaltered original map. Here are common issues and the recommended changes to your map to try to resolve them. Please PM Dr Z if you have any issues that are not listed and the guide will be amended as needed. Cold start problem - Reduce prime pulse value unless you get kickback. Hot start problem - Adjust cranking pulse at 80C. Miss at idle - Unknown by Dr Z. Hesitation when pinning throttle from idle - Adjust acceleration enrichment at 1500. Starter kickback cold - Adjust cranking pulse up or down at -40C. Starter Kickback hot - Adjust cranking pulse up or down at 80C. You can also increase the prime pulse in 0.2 increments to fix kickback. Flat lined at 5500 RPM at sea level - The injector is maxed out. M109R or GSXR injector with the new injector map solves the problem. See tech tips for the new injector. Backfire in exhaust coming off hard throttle - Decrease deceleration fuel cut % number. Launch then bog then takes off again - Decrease acceleration enrichment cycles. Bog then takes off - Decrease acceleration enrichment percent. Idle too high hot - Adjust warm-up RPM @ 70C or idle position (steps). Check throttle free play. Larger tires or heavier machine - Decrease acceleration enrichment. Lighter clutching or freer flowing exhaust - Increase acceleration enrichment. Lean or rich stall while engine warms up - Adjust warm-up enrichment at the temp it stalls. Stalls right after starting - Needs more or longer after start enrichment. Labors for a few seconds after starting then smooths out - Needs less or shorter after start enrichment. Larger tires - Change the TPS calibration number to your tire size in inches. Stock is 25. Lyle changed this box to a tire size value instead of a TPS setting. |
 |
 Nyroc thanks all the supporting members for their contributions that help keep this website running. When you contribute, you get added features on your account like increased PM count, img and video tags, personal pages, avatars and want/for sale ads. Click on the supporting member logo at the left to use paypal to become a supporting member, or mail check or money order to: Nyroc, P.O. box 431, Advance, NC 27006. Thanks - Nyroc |
| Latest contributors: BF750CAMO , 2000limitedxj , swampdonky , SmoothKing700 , kingquad09 , darkling | |