levels

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...

So, having read all the archived posts.......... Just doing the seals on my FE501 02 - blew one big time last week on the local MX track - searches here say anything from 100mm to 150mm. Doc says 115 - 130 so guess 120 is as good a place to start as any. This is with the springs out I guess ...