Hi folks! Got a great big issue here with a CRRC 50i. It's brand spankin' new and I can't seem to get it to run at all. All I'm getting is a pop or two or a backfire, but that's better than yesterday when all it did was to cause me to make up new cuss words. I'm using 93 octane fuel with a 28 to 1 ratio of Klotz synthetic oil. Maxford USA said they break theirs in at 25 to 1 ratio. The ignition power is a 4 cell 2000 mAh sub-c nicad pack supplying 4.8 volts. Unloaded voltage is 5.8 VDC, so it's fully charged. I'm getting fuel, air, and spark, although the original plug had a very weak spark. I tried a new plug today and started getting it to fire intermittently. I even tried a few shots of starting fluid. It only popped a little more frequently. I know I'm getting fuel because the plug is wet when I remove it. I know I'm getting air because I can see the butterfly valve open. I reset the low and hi speed needles to the factory settings. With the new plug, I have a much brighter spark, yet I can't get it to sustain anything beyond a pop or two. Any ideas, Guys? Thanks! Dave Bryer