Yamaha 90 - Page 2

To Next Page

To Previous Page

EMU25060

ZMU01690

Read this owner’s manual carefully before operating your outboard motor.

U6H1-9-16 Hyoshi 4/22/05 9:20 AM Page 2

Main Page

Table of Contents4
General Information6
Identification Numbers Record6
Outboard Motor Serial Number6
Key Number6
Emission Control Information6
North American Models6
Safety Information7
Important Labels8
Warning Labels8
Basic Boating Rules (Rules of the Road)9
Steering and Sailing Rules and Sound Signals9
Rules When Encountering Vessels9
Other Special Situations10
Fueling Instructions12
Gasoline13
Engine Oil13
Battery Requirement13
Battery Specifications13
Propeller Selection13
Start-In-Gear Protection14
Basic Components15
Main Components15
Fuel Tank15
Fuel Joint16
Fuel Gauge16
Fuel Tank Cap16
Air Vent Screw16
Remote Control16
Remote Control Lever16
Neutral Interlock Trigger17
Neutral Throttle Lever17
Tiller Handle17
Gear Shift Lever17
Throttle Grip18
Throttle Indicator18
Throttle Friction Adjuster18
Engine Stop Lanyard Switch19
Engine Stop Button19
Main Switch20
Power Trim and Tilt Switch on Remote Control or Tiller Handle20
Power Trim and Tilt Switch on Bottom Engine Cowling21
Trim Tab with Anode21
Trim Rod (Tilt Pin)22
Tilt Support Lever for Power Trim and Tilt or Hydro Tilt Model22
Top Cowling Lock Lever(S) (Turn Type)22
Flushing Device23
Warning Indicator23
Tachometer23
Digital Tachometer23
Oil Level Indicators (Three Indicators)24
Oil Level Indicator (Digital Type)24
Overheat Warning Indicator (Digital Type)24
Trim Meter24
Trim Meter (Digital Type)25
Hour Meter (Digital Type)25
Warning System25
Overheat Warning25
Oil Level Warning and Oil Filter Clogging Warning26
Operation28
Installation28
Mounting the Outboard Motor28
Breaking in Engine29
Gasoline and Engine Oil Mixing Chart (50:1)29
Procedure for Oil Injection Models29
Preoperation Checks30
Fuel30
Oil30
Controls30
Engine30
Operation after a Long Period of Storage30
Filling Fuel and Engine Oil31
Filling Fuel for Portable Tank31
Ring Free Fuel Additive31
Filling Oil for Electric Start Models31
Oil Level Indicator Operation33
Operating Engine33
Feeding Fuel (Portable Tank)33
Starting Engine34
Warming up Engine37
Electric Start and Prime Start Models37
Shifting37
Forward (Tiller Handle and Remote Control Models)37
Reverse (Automatic Reverse Lock and Power Trim and Tilt Models)38
Stopping Engine38
Procedure39
Trimming Outboard Motor39
Adjusting Trim Angle40
Adjusting Boat Trim41
Tilting up and down42
Procedure for Tilting up42
Procedure for Tilting down44
Cruising in Shallow Water44
Power Trim and Tilt Models / Power Tilt Models44
Cruising in Other Conditions45
Maintenance47
Specifications47
Transporting and Storing Outboard Motor48
Storing Outboard Motor48
Procedure48
Lubrication (Oil Injection Models)49
Cleaning and Anticorrosion Measures50
Battery Care50
Flushing Power Unit50
Cleaning the Outboard Motor51
Checking Painted Surface of Motor51
Periodic Maintenance52
Replacement Parts52
Maintenance Chart53
Greasing54
Cleaning and Adjusting Spark Plug55
Checking Fuel System55
Inspecting Fuel Filter56
Cleaning Fuel Filter56
Inspecting Idling Speed57
Checking Water in Engine Oil Tank57
Checking Wiring and Connectors58
Exhaust Leakage58
Water Leakage58
Checking Power Trim and Tilt System58
Checking Propeller59
Removing the Propeller60
Installing the Propeller60
Changing Gear Oil61
Cleaning Fuel Tank62
Inspecting and Replacing Anode(S)62
Checking Battery (for Electric Start Models)63
Connecting the Battery64
Disconnecting the Battery64
Checking Top Cowling65
Coating the Boat Bottom65
Trouble Recovery66
Troubleshooting66
Temporary Action in Emergency69
Impact Damage69
Replacing Fuse69
Power Trim and Tilt / Power Tilt will Not Operate70
Starter will Not Operate70
Emergency Starting Engine71
Engine Fails to Operate72
Ignition System Malfunction72
Cold Engine Fails to Start72
Treatment of Submerged Motor74
Procedure74
Consumer Information75
Important Warranty Information for U.S.A. and Canada75
Yamaha Motor Corporation, U.s.a. Outboard Motor Two Year Limited Warranty77
Important Warranty Information if You Use Your Yamaha Outside the Usa or Canada80

Yamaha 90 - Page 2

Table of Contents

Related product manuals