Name: LEHR LP2.5 HP
Brand: LEHR
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LP2.5 Service Manual

Propane Outboard Engine

Technical Specifications and Step by Step Guides

Your LEHR Authorized Dealer and Service Provider

Call Toll Free: 1-877-666-8679

Table of Contents2
General Information and Specifications3
Understanding Propane4
Carbon Monoxide Hazard4
Handling & Storage4
Before Use4
General Specifications5
Propane Powered Outboard Marine Engine7
Maintenance Specifications: Power Unit8
Electrical Specifications10
Maintenance Schedule11
Lubrication11
Checking Painted Surface of Motor11
Maintenance Chart11
Engine Fastener Torque Specifications12
General Torques13
Spark Plug End Gap14
Quick Notes14
Carburetor Metering Needle Base Settings14
How to Read Engine Serial Number Code15
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
Maintenance21
Changing the Gearcase Oil21
Inspecting the Anode21
Lubrication Points22
Valve Lash Check (Engine Must be Cold)23
Propane Fuel Sytem26
Removing and Replacing the Carburetor27
Installing the Slide and Throttle Cable Cap29
Removing the Fuel Line31
Assembling the Fuel Line33
Ignition System35
Ignition System Schematic36
Checking the Ignition Spark37
Checking the Engine Stop Switch38
Testing the Ignition Coil39
Adjusting or Replacing Ignition Coil40
Powerhead42
Checking the Cooling System43
Cooling System Flowchart44
To Inspect or Replace the Thermostat or Sacrificial Anode45
To Replace the Head Gasket46
Installing the Power Head to the Midsection50
Gearcase52
Checking the Anodes53
Checking the Propeller53
Check the Gearcase for Leaks53
Removing the Gearcase to Inspect/Service Water Pump54
Gearcase Exploded View55
Lp2.5 Lower Unit Drive Parts55
Water Pump Disassembly56
Installing the Water Pump Impeller57
Installing the Gearcase58
Miscellaneous Service60
Removing the Bottle Bracket61
Removing the Rear Engine Cover62
Assembling the Tiller Handle63
Installing the Tiller Handle63
Tiller Handle Reference64
Replacing the Manual Starter Assembly65
Detailed Parts List and Diagrams67
Lp2.5 Lower Unit Parts68
Lp2.5 Steering Parts72
Ob072 Clamp Parts74
Lp2.5 Power System76
Lp2.5 Valve System79
Lp2.5 Crankshaft Assembly80
Lp2.5 Covers81
Lp2.5 Starting System82
LP2.5 Accessories83
Table of Contents84
Important Manual Information86
General Information87
- Trim Rod91
- Tilt Lock Mechanism91
- Top Cover Lock Lever91
- Carrying Handle91
- Clamping the Outboard Motor92
- Mounting Height92
- Mounting the Outboard Motor92
Installation92
- Pre-Operation Checks93
- Controls93
- Checking the Engine Oil Level93
Operation93
- Installing the Propane Canister94
- Removing the Propane Canister94
- Connecting Remote Propane Tank94
- Starting Engine95
- Warming up Engine95
- Shifting96
- Stopping Engine96
- Adjusting Boat Trim96
- Bow up96
- Procedure for Tilting down97
- Bow down97
- Tilting up and down97
- Procedure for Tilting up97
- Transporting and Storing the Outboard Motor98
Maintenance98
- Storing the Outboard Motor99
- Procedure for Flushing after Sea Water Use99
- Cleaning the Outboard Motor after Use100
- Greasing101
- Spark Plug101
- Inspection Checkpoints101
- Adjusting Idling Speed102
- Changing Engine Oil102
- Water Leakage103
- Checking Propeller103
- Exhaust Leakage103
- Checking Wiring and Connectors103
- Installing the Propeller104
- Propeller Selection104
- Changing Gear Oil105
- Inspecting and Replacing Anode105
- Engine Power Loss106
- Engine Idles Irregularly or Stalls106
- Engine will Not Start or Operate106
Troubleshooting106
- Engine Vibrates Excessively107
- Impact Damage107
- Starter will Not Operate107
- Emergency Engine Start108
- Procedure for Submerged Motor108
Specifications109
Warranty110

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LEHR LP2.5 HP Specifications

General

Brand	LEHR
Model	LP2.5 HP
Category	Outboard Motor
Language	English

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LEHR LP2.5 HP Specifications

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