CHAPTER 7 N2001 PRESSURE REGULATOR /CONVERTER Removal and Installation of N2001 LP Regulator/Converter.................................................64 Hose Connections....................................................65 N2001 Removal Steps: ............................................66 N2001 Regulator Disassembly Steps: .....................67 N2001 Disassembled Service..................................69 CHAPTER 8 N-CA55-500TR AIR/FUEL MIXER Removal and Installation of the N-CA55-500TR Mixer ........................................................................70 N-CA55-500TR Mixer Removal Steps:
....................71 N-CA55-500TR Disassembly and Service...............72 N-CA55-500TR Disassembled Service....................74 Installing the Mixer/Throttle Assembly .....................75 CHAPTER 9 TEST AND ADJUSTMENTS N2001 Service Testing .............................................78 Primary Stage Test Hardware ..................................79 Primary Stage Pressure Test....................................79 N-CA55-500TR Service AVV (Air Valve Vacuum) Testing......................................................................81 Ignition Timing Adjustment .......................................82 Idle Mixture Adjustment............................................85 CHAPTER 10 SERVICE TOOL KIT Service Tool Kit ........................................................87 G420E/G424E Tier LP Engine Table of Contents 6