I sure did. I went from very lean to very rich on both high and low end. Although as the richer you run it the frequency of the rpm fluxes reduce it is because the engine is running so rich it only is producing half the RPM it should at full throttle. I'm almost certain it's an ignition. I'm about to call CH and explain the situation again and purchase another ignition with the hopes that they will offer to take the old one back if I am correct. I hate to sink anoter $150 into it though in case I am wrong.