Installation Manual ULPOWER UL390i UL390iS 390iSAMI 390A01 Revision No: 3 Date: 2014-09-15 Page: 7 of 69Table of contentsPreface ..................................................................................................................4Remarks ............................................................................................................... 4Modifications ......................................................................................................... 4Engine serial number ............................................................................................... 4Repeating symbols .................................................................................................. 5Safety Information ....................................................................................................6Table of contents .....................................................................................................7Engine description ....................................................................................................9General Description ................................................................................................ 9Specifications ........................................................................................................ 9Description of basic standard engine and accessories ...................................................... 10Engine views ....................................................................................................... 11Technical data ....................................................................................................... 15Dimensions of basic standard engine ( With standard propeller flange L = 55 ) ...................... 15Weight of basic standard engine and accessories ........................................................... 15Centre of gravity of basic standard engine ................................................................... 15Preparations for engine installation ............................................................................ 16Transport ........................................................................................................... 16State of delivery .................................................................................................. 16Engine preservation .............................................................................................. 16Engine suspension and position ................................................................................. 17Mounting Position ................................................................................................. 18Fuel injection system .............................................................................................. 20Air intake system ................................................................................................... 28Air filter ............................................................................................................ 28Idle speed adjustment ........................................................................................... 28Connecting the air filter ......................................................................................... 29Throttle cable ....................................................................................................... 30Exhaust system ...................................................................................................... 31Dimensions of the exhaust system: ............................................................................ 31Exhaust installation : ............................................................................................. 32Cabin Heating: ..................................................................................................... 33Cooling system....................................................................................................... 34Cylinder head cooling: ........................................................................................... 34Cylinder head temperature: .................................................................................... 34Oil cooling: ......................................................................................................... 34Oil temperature ................................................................................................... 34Testing & evaluation ............................................................................................. 35Lubrication system ................................................................................................. 36Oil Cooler ........................................................................................................... 36Oil/Air Separator & Breather (UL390i; UL390iS; UL390iSA) ............................................... 38Oil/Air Separator & Breather (UL390iSA) ..................................................................... 40Electrical system .................................................................................................... 411. Single ECU & Ignition .......................................................................................... 412. Double ECU & Ignition ........................................................................................ 48Alternator & Regulator/Rectifier .............................................................................. 58Recommended diagram .......................................................................................... 59Starter motor ...................................................................................................... 60Battery .............................................................................................................. 60