I just changed oil trans fluid and filters along with fuel filters, went to start and it would not go I have a cartridge fuel filter and a jar type (not sure what you call them) and I changed both, I have to believe I got air in the lines, I filled the tank with fuel tried the manual method of holding the key for 30 seconds then try to start but did not go, any suggestions I have had it for over 10 years never had a problem thanks