I just bought two of these bikes, both are not far from road ready. I am hoping to get one up and on the rd, soon. One i did have going but he wiring is messed up in it and a wire burnt off. I am not focusing o the one that has the wiring harness in good order. This bike I have been trying to start over the last few days. Turns over well, have checked plug, seem to firing well, had carb flushed, but still no catch....any tips??? what to do next...