1968 650 fresh rebuild. Running tri-spark ignition, tri-spark dual coil, brand new stator and rotor, no battery, but had a battery hooked in during this initial start up attempts. I set the ignition up at 38 degrees before tdc. I triple checked the cam gear timing before putting the cover on. I just set the valves last night.... I tickled the carbs 15 different times with gas coming out, I have spark at both plugs, but it will not fire. I even tried alittle starting fluid with no luck. I think I hear alittle air leaking out around the spark plugs.... but not much. What do you guys suggest?