hi vic
glad to hear it's doing better ,no you can't clean those glow plugs
once they go that's it but since you are running riche they clog up quicker when you have about 2 gallons of fuel burnt you will start to lean it and your plugs will last longer.i can go 12 gallons befor i change it but i do check it once in a while.
good plan save the cash for plugs and fuel
feel free to drop me a line anny time
fly well
steff