| Author | Message | ||
     Firewhirl |
Is there anyway to do it without using the dealer digital technician software? | ||
| Firewhirl |
Seems like there is a way: 2k4xb12 Posted on Saturday, July 10, 2004 - 06:07 am: There's been discussion lately about the ability to adjust static timing without the need to hook the bike up to the Digital Technician. It can be done, and it's really quite a simple process. Here's how to do it on an XB -- not sure how similar the other models are in terms of wire colors, etc. but the process should be the same. 1. Rear up on stand. 2. Remove seat. 3. Remove timing mark inspection plug. 4. Gently pry back the silicon rubber seal to gain access to the terminals of the gray connector on the ECM. You'll need to stab your DMM leads in from the back, and this makes it easier. 5. Set DMM to read DCV, 20V range. Insert black DMM probe into pin 7 (black wire with white tracer) and red DMM probe into pin 3 (if I racall correctly -- anyway, it's the green wire with the white tracer) 6. Sidestand up, key on, ignition switch on, transmission in 5th gear. You should hear fuel pump come on and then time out. 7. Looking through the timing mark inspecion hole, turn the rear wheel in a forward direction until the timing mark is visible at the left edge of the hole. You should see zero (or close to it) volts on the DMM. If you see +5V, then you're at TDC for the rear cylinder -- rotate the wheel until you see the mark again. 8. The meter should change from 0 to +5V just as the timing mark passes the center of the hole. As a bonus, the fuel pump comes on at the same instant, providing audible feedback as well. Turn the wheel slowly, and if you overshoot the mark, back it up until the mark is again at the left edge, and then go forward. Don't try to check/adjust it while turning the wheel backwards. 9. If the timing is advanced (transition occurs before center), nudge timing plate CCW. If the timing is retarded (transition occurs after the mark passes center), nudge the plate CW. If, as the other thread suggested, somebody wanted to connect an LED to monitor this transition, you could easily hook it up as follows: Connect a 330 ohm dropping resistor to the anode side of an LED. Hook the other end of the resistor to the green/white wire of the CMP sensor(pin 3, gray connector at the ECM). Hook the cathode of the LED to the black/white wire of the CMP sensor (pin 7, gray connector at the ECM). Using the above instructions, the LED would be off with the timing mark at the left edge of the hole with the front cylinder before TDC. It should then transition to ON just as the timing mark passes the center of the hole. Additionally, both techniques can be employed by making your connections at the CMP sensor connector. I chose to probe the ECM connector because there you don't need to remove any trim pieces or cut any wire ties to access the proper wires. | ||
| Barkandbite |
Jesus -- I think I'd rather just stab myself in the eyes with a spanner and tell myself it's all within spec!  I'm sure that if I tried to do what you outline above I'd end up with a broken clutch cable, my kickstand wouldn't work anymore and I could only turn left... ...either that or I'd lose a finger. Chris | ||
| Ejiii |
Yikes! I agree, a little complex to check something that will never change unless someone has messed around with something they should not have. I'll stick with the software! | ||
| Firewhirl |
Ejiii.....what software are you using? | ||
| Fullpower |
seemed pretty simple to me. no software required, just an led and a resistor. about 2 dollars worth of parts, and 15 minutes. | ||
| Opto |
Go Fullpower! lol... Point is, more than a few times people have discovered their timing was not set right at the factory, me included. | ||
| Ejiii |
I'm using the Technoresearch software, available from DaveS. | ||
| Firewhirl |
Ejiii, So you have actually used the techno to verify the timing? (Message edited by firewhirl on May 10, 2005) |
