Name: LEHR LP5.0 S
Brand: LEHR
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LP5.0 S/L Service Manual

Propane Outboard Engine

Technical Specifications and Step by Step Guides

Phone : 310.839.9009

Fax : 310.943.2172

Email : support@golehr.com

Your LEHR Authorized Dealer and Service Provider

Call Toll Free: 1-877-666-8679

Table of Contents2
General Information and Specifications Contents3
Understanding Propane4
Safety Warnings for Propane Units4
Carbon Monoxide Hazard4
Handling and Storage4
General Specifications5
Propane Powered Outboard Marine Engine (LP4.0S and LP5.0L)7
Maintenance Specifications : Power Unit8
Electrical Specifications10
Maintenance Schedule11
Lubrication11
Cheching Painted Surface of Motor11
Maintenance Chart11
Engine Fastener Torque Specifications12
General Torques13
Quick Notes14
Lehr Propane Powered Outboard Fuel Consumption Tests16
Service Tools17
Adjusting Engine Idle Speed18
Inductive Self-Powered Tachometer18
Checking the Spark Plug19
Changing the Engine Oil20
Changing the Gearcase Oil21
Inspecting the Anode21
Lubrication Points22
Valve Lash Check23
Valve Clearance24
Propane Fuel Sytem Contents26
Removing and Replacing the Carburetor27
Installing the Slide and Throttle Cable Cap29
Removing the Fuel Line31
Installing the Fuel Line Assembly33
Ignition System Contents35
Ignition System36
Ignition System Schematic36
Checking the Ignition Spark37
Checking the Engine Stop Switch38
Testing the Ignition Coil39
Adjusting or Replacing Ignition Coil40
Powerhead Contents42
Checking the Cooling System43
Cooling System Flowchart44
To Inspect or Replace the Thermostat or Sacrificial Anode45
To Replace the Head Gasket46
Removing and Installing the Power Head50
Gearcase Contents52
Check the Gearcase for Leaks53
Checking the Propeller53
Checking the Anode53
Removing the Gearcase to Inspect/Service Water Pump54
Gearcase Exploded View55
LP5.0 Lower Unit Drive Components55
Water Pump Disassembly56
Installing the Water Pump Impeller57
Installing the Gearcase58
Miscellaneous Service Contents60
Removing the Bottle Bracket61
Removing the Rear Engine Cover62
Rubber Bushing Installation63
Throttle Cable Installation63
Tiller Handle Reference64
LP5.0 Steering Parts64
Steering Friction Screw Installation65
Replacing the Manual Starter Assembly66
Adjusting Start in Gear Protection67
Detailed Parts List and Diagrams69
LP5.0 Lower Unit Parts70
LP5.0 Clamp Parts76
LP5.0 Power System78
LP5.0 Valve System81
LP5.0 Crankshaft Assembly82
LP5.0 Covers83
LP5.0 Starting System84
LP5.0 Accessories85
Table of Contents86
Important Manual Information88
General Information89
- Basic Components90
- Fuel Tank91
- Teller Handle91
- Gear Shift Lever91
- Throttle Grip91
- Steering Friction Adjuster92
- Engine Stop Button92
- Manual Starter Handle92
- Engine Stop Switch92
- Tilt Lock Mechanism93
- Top Cover Lock Lever93
- Carrying Handles93
- Mounting the Outboard Motor94
- Mounting Height94
- Clamping the Outboard Motor94
Installation94
- Controls95
- Engine95
- Checking the Engine Oil Level95
Operation95
- Istalling the Propane Canister96
- Removing the Propane Canister96
- Connecting the Remote Propane Tank96
- Starting Engine97
- Warming up Engine97
- Bow up98
- Shifting98
- Adjusting Boat Trim98
- Stopping Engine98
- Bow down99
- Tilting up and down99
- Procedure for Tilting up99
- Procedure for Tilting down99
- Transporting and Storing the Outboard Motor100
Maintenance100
- Storing the Outboard Motor101
- Procedure for Flushing after Sea Water Use101
- Cleaning the Outboard Motor after Use102
- Checking Painted Surfaces of Motor102
- Replacement Parts102
- Inspection Checkpoints103
- Greasing103
- Spark Plug103
- Adjusting Idling Speed104
- Changing Engine Oil104
- Checking Wiring and Connectors105
- Exhaust Leakage105
- Checking Propeller105
- Removing the Propeller105
- Installing the Propeller106
- Propeller Selection106
- Changing Gear Oil107
- Inspecting and Replacing Anode107
- Coating the Boat Bottom107
Troubleshooting108
Specifications111
Warranty112

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LEHR LP5.0 S Specifications

General

Brand	LEHR
Model	LP5.0 S
Category	Engine
Language	English

LEHR LP5.0 S User Manual

Table of Contents

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LEHR LP5.0 S Specifications