Mtd 25cc 2 Cycle P25 Series Engines Workshop Service Repair Manual – DOWNLOAD

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LANGUAGE:ENGLISH
PAGES:64
DOWNLOADABLE:YES
FILE TYPE:PDF

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DESCRIPTION:

Torque specifications may be noted in the text that covers assembly, they may also be summarized in tables along with special instructions regarding locking or lubrication. Whichever method is more appropriate will be used. In many cases, both will be used so that the manual is handy as a quick-reference guide as well as a step-by-step procedure guide that does not require the user to hunt for information.

The level of assembly instructions provided will be determined by the complexity and of reassembly, and by the potential for unsafe conditions to arise from mistakes made in assembly. Some instructions may refer to other parts of the manual for subsidiary procedures. This avoids repeating the same procedure two or three times in the manual.

The P25 series of engines are used on a variety of string trimmers. These engines have:
• 25cc’s of displacement.
• Piston ported/loop scavenged design.
• Cantilever crankshaft.

TABLE OF CONTENTS:

Chapter 1: Introduction 1
Professional Shop Manual intent 1
Fasteners 1
Assembly 2
Description 2
Identifying engines 3
Model and Serial Numbers 4
Chapter 2: Maintenance 5
Maintenance 5
Air filter 5
Spark plugs 6
Spark arrestor 7
Fuel filer 8
Storage 9
Chapter 3: Troubleshooting 11
Definitions 11
Introduction 11
Steps to troubleshooting 11
Identify factors that could cause the problem 13
Repairing the problem 16
Diagnostic tests 16
Prime test 17
Compression testing 18
Chapter 4: Ignition 19
Troubleshooting the Ignition System 19
Testing the module 20
Test the engine stop switch 21
Module 22
Flywheel 23
Table of Contents
For Parts Call 606-678-9623 or 606-561-4983
II
Chapter 5: Fuel system and carburetor 25
Fuel system troubleshooting 25
Inspecting the fuel 25
Check the fuel/oil mixture 26
To check the fuel in the carburetor: 26
Test fuel for alcohol 27
Fuel filer 28
Fuel lines 29
Fuel tank vent 29
Fuel tank 30
Carburetor 31
Troubleshooting the carburetor 31
Disassembly of the carburetor 33
Re-assembly of the carburetor 37
Carburetor insulator 39
Chapter 6: Starters 41
Recoil Starter Removal 41
The starter rope, pulley and springs 43
Chapter 7: Clutch and Upper Drive Shaft 47
Drive shaft assembly 47
Clutch removal/replacement 49
Chapter 8: Engine assembly 51
Theory of operation 51
Engine disassembly 52
Engine Reassembly 55