I'm having a similar problem with my WD45. I just finished rewiring it and it fires up instantly. However, it doesn't seem to be getting enough gas. When I remove the sediment bowl, or put in on very loosely, gas flows fine from the tank. But, when I tighten the sediment bowl on enough so that it doesn't leak, the flow of gas stops. Do I have an airlock somewhere? Plugged line? I also have had the problem with it wanting to die going up or down hills. Anyway, any help or advice would be greatly appreciated.