Can anyone provide any information about a 1989 Quad Sport 250? I picked one up last week and finally got it running today. I got it to idle good, but when I give it some throttle input the rpm's don't come back down to where they were originally. I pulled the carb back off, thinking maybe the slide was sticking. Everything appears to be in order. If I pull the decompression lever it will start idling normally again. I have found very little info on these machines through Google so any info that anyone could provide would be greatly appreciated. Thank You