I had started bike and rode for approx 80 yards and the engine began making a ticking or tapping sound. Almost like the exhaust was loose at engine. I continued to ride while trying to find where noise was actually coming from. I traveled approx 1/2 mile from initial start and engine quit. Tried to restart and seemed if there wasn´t as much compression when kicking to attempt restart. engine would roll over each kick. but seems as if there is no compression or isnt firing. Any suggestions?????