I changed the gas valve regulator and and blew out the gas lineswith compressor to remove any possible obstructions in the lines.I also checked all orofices on the burners but all are clean? What can I do to fix it? I also tried adjusting the flame in the gas valve knobs. When I try and light the burner with the igniter the spark can be seen easly but it won't ignite I have to light manually and then the flame won't adjust to a higher flame it is just a little flame? Please help. Thanks you can call me at 970-402-6177 John