I have got an 02 ZR600EFICC that I am getting a ‘surging’ going on between say 6100 to 7000 rpms when just cruising down the trail. It almost is like a governor, you can feel the sled pull and let up, pull and let up. I do not see the tach go up and down much at all. When opened wide open it seems to run pretty true. Compression is good 125+ both sides. No ECU codes.
Leading me to the servo. It seems to be functioning properly, cables adjusted, valves are clean. With the back of the sled up and you open it up above 7000 the servo trips. Now it does not ‘stay’ open if I remember right, I believe it opens and closes right away-is this correct?? And then when it idles down it trips. The dealer said this was OK. ???
Do you have any other ideas?
Leading me to the servo. It seems to be functioning properly, cables adjusted, valves are clean. With the back of the sled up and you open it up above 7000 the servo trips. Now it does not ‘stay’ open if I remember right, I believe it opens and closes right away-is this correct?? And then when it idles down it trips. The dealer said this was OK. ???
Do you have any other ideas?