thank u 4 replying TD2K
actually I dont know what ' s clogging in gas tips, maybe with further investigation I will know
cant strainer catch traces of liquids, it must be some type of strainer that does the job, no??
I think that part of the problem is deposit in the feed branches pipes, so am looking for solutions to clean them whenever un overhaul is planned.
but you are right process is to be considered to solve the problem, I theink i have to go through analysing some samples...