I got your email- you have a Zenith high pressure fuel system.

First things first- do a COMPLETE tune-up. Nothing worse than chasing your tail piecemealing a repair. I can give you NAPA part #'s for your application if you need. Once you have good spark, then, if need be, you can tackle the fuel system. Ignition system parts are cheaper, easier to get, easier to install then any propane part.