Table of Contents GP/GPS 6600Awc_bo0171950en_002TOC.fm 64. Maintenance 344.1 Engine Maintenance ............................................................................344.2 Periodic Maintenance Schedule ..........................................................344.3 Engine Oil ............................................................................................354.4 Servicing Air Cleaner ...........................................................................364.5 Spark Plug ...........................................................................................374.6 Cleaning the Sediment Cup ................................................................384.7 Carburetor Adjustment ........................................................................394.8 Adjusting Engine Speed ......................................................................394.9 Storage ................................................................................................404.10 Transport .............................................................................................404.11 Troubleshooting ...................................................................................414.12 Wire Colors ..........................................................................................424.13 Electrical Schematic ............................................................................424.14 Engine Schematic ...............................................................................445. Technical Data 465.1 Generator ............................................................................................465.2 Engine .................................................................................................47