With the winter we've had I finally got a chance to get my 99 Mach Z out on a lake and try it out.Sled had jaws pipes and over jetted went back to stock exhaust and stock jetting. The sled seemed to be running good so I opened it up on a long straight away got up to 190 kph at 8800 rpm on the dream o meter slowed back down and stopped. The Rev,s were sitting at 4000 for quite a while and very slow to come back to 1800. Any idea what would cause this? running through trails after it would stay at about 3000 when stopped and slowly come down.