Body type location Model number location SYSTEMS AND OPERATION FUEL PUMP SYSTEM 0 The fuel pump on a diaphragm carburetor uses the vacuum and pressure pulse from the engines crankcase to move a diaphragm up and down. The pulse travels from the crankcase through a drilled passage or a hose to the carburetor. […]
Carburetors
Dedicated to helping you troubleshoot and fix carburetor problems in your garden power tools and forestry equipment. If you’re experiencing issues with your equipment not starting, idling roughly, or losing power, the carburetor could be the culprit.
Our team of experts has put together comprehensive guides to help you identify and fix common carburetor issues, so you can keep your equipment running smoothly and get back to tackling your yard work with ease. Whether you’re a professional landscaper or a homeowner with a small garden, we’re here to help you get the most out of your equipment.
Zama Carburetor Repair Fault chart
TROUBLE SHOOTING DIAPHRAGM CARBURETOR PROBLEMS Engine problems that can be mistaken for carburetor problems Performance problem Engine Air leaks / bolts loose / gaskets damaged Plugged / restricted fuel pump pulse passage Inspect possible fault • • • • • • • • • • • Air filter restricted (dirt / fuel) • • • […]
Stihl Carburetor Repair Guide
This service manual contains repair and servicing procedures for most carburetors used by Stihl. Carburetors Contents 1. Safety Precautions 2 2. Introduction 2 3. Assignment 3 3.1 Designation 8 4. Purpose of Carburetor 8 5. Construction/Function 9 5.1 Fuel Pump 9 5.2 Operating Conditions 11 5.2.1 Full Load 11 5.2.2 Idle 12 5.2.3 Carburetor with […]
Tillotson HU Carburetor Manual
INTRODUCTION To keep apace of new market demands Tillotson has designed and developed a new miniature all-position diaphragm carburetor, the HU series. This versatile unit is lightweight and compact, only a 1-1/8 “ cube, but it still comprises a self-contained fuel pump and filtering screen HU SCHEMATIC Filtering Screen Venturi Fuel Chamber Pulse Chamber Fuel […]
Tillotson HS Carburetor Repair
INTRODUCTION The demand for a miniature all position diaphragm carburetor prompted Tillotson to design and develop the “HS” series. This small compact unit, only a 1-1/2 inch cube, is versatile in application because of its lightweight and compact size. Even though the carburetor is extremely minute, it still comprises a self-contained fuel pump and filtering […]
Repair Procedures of Stihl 4-MIX Engine
MIX® Troubleshooting and Repair Before any repair work is performed on a machine, a thorough evaluation should be made to determine what parts are actually in need of replacement or maintenance. The service manuals for STIHL 4-MIX® engines outline testing procedures as well as special tools that are needed to repair the equipment. The STIHL […]