Zama Carburetor Technical Guide

  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. […]

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 […]

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