| Author | Message | ||
     Moosestang |
Does everyones bike have this? Pull in the clutch and I get this shudder when the rpms drop down to idle. I'm not sure the exact rpm when it occurs, but it is below 3k i'm sure. It seems to be reduced by adding 5 degrees of timing to the 6 blocks in the idle zone, so i'm hoping it can be completely tuned out. 05 xb9 with drummer, race ecm and pro filter. | ||
| Brumbear |
yep she just got a chill | ||
| Moosestang |
yep she just got a chill That's exactly what it feels like. I,d like to get rid of this shiver if possible. It's definitely less noticeable when I add timing to the idle zones. I was thinking of reducing or adding timing in the rpms where it happens. When you close the throttle the timing goes from 35,20,0. I was hoping that less of a timing leap would help, but I really don't know shiot about timing tables. I don't think I could hurt much by reducing timing in this area, but adding? (Message edited by moosestang on November 02, 2008) | ||
| Brumbear |
I just press EM up against the tank and enjoy the ride  | ||
| Moosestang |
Well I adjusted the timing in the bottom two rows. The stock timing table went from 20 degrees at 2000, down to 0 at 1350. Stock timing tables for race ecm.  I just tried to smooth it out by adding some timing and subtracting some so the difference wasn't so great at each step. The result is no more shiver. it drops right down to idle and feels smooth as butter compared to the stock timing table. I don't have the ability to datalog yet, but I assume when I pull in the clutch and close the throttle, the bottom two rows are what the motor is using for timing.  I left the 800rpm column at zero because the bike is harder to start if I put 5 degrees in those blocks. I make no claims that this won't harm your motor, but so far so good. I road to and from work(30 miles round trip) with no ill effects. The shiver was extremely annoying and I was willing to take a risk in order to rid myself of the shakes. I made the same changes to the front timing table. Anyone think this can cause problems? |
