Hi everyone , I just picked up a 99 blaster. It was running rough, also heard a knocking sound which seemed to be coming from the top end . Cleaned the carb, made some tweaks , and got it running a little better. Drove it hard for 3 days. It was a little sluggish on the bottom end (don’t think it’s jetted properly for the mods it has) , but was much better on the top end , but still not 100% hitting powerband as it should. On the last ride I ended up having to limp it out in 1st gear, would stall right away trying to give it any more gas. I did a compression test, and came back with just over 100psi. I used a good quality oem gauge with the Schraeder style fitting. What should the compression be in these? Also I realized one of the exhaust studs is snapped , which could be accounting for some of the ticking also. Thanks for any help anyone.