Joined Nov 2012
2K Posts | 821+
Iceland
Hi,
Sometimes my 570 is aggressive and revvy and it has the POP of a high-compression big-bore single, it's aggressive and clearly powerful - and sometimes it's a bit milder. Softer, a little less revvy, reminescent of my docile DR-Z. It seems to vary between starts of the bike - it was mild, then I goofed a clutch action and stalled it, started it up again and it seemed more aggressive. I think I'm not imagining it, but I could be of course.
I'm wondering if it's the ECU doing something, maybe a signal it's reading varies more than it should (corrosion in sensor leads etc.). Or the map switch is intermittently jumping between soft and hard.
Has anyone encountered something similar?
In trying to eliminate the switch being the cause - Is the difference between aggressive and soft noticeable in the intake/exhaust sound and the engine character in free revving?
Sometimes my 570 is aggressive and revvy and it has the POP of a high-compression big-bore single, it's aggressive and clearly powerful - and sometimes it's a bit milder. Softer, a little less revvy, reminescent of my docile DR-Z. It seems to vary between starts of the bike - it was mild, then I goofed a clutch action and stalled it, started it up again and it seemed more aggressive. I think I'm not imagining it, but I could be of course.
I'm wondering if it's the ECU doing something, maybe a signal it's reading varies more than it should (corrosion in sensor leads etc.). Or the map switch is intermittently jumping between soft and hard.
Has anyone encountered something similar?
In trying to eliminate the switch being the cause - Is the difference between aggressive and soft noticeable in the intake/exhaust sound and the engine character in free revving?
