Generac Power Systems GTV-760 User Manual

SERVICE
MANUAL
Manual Part No. 0E2081
Printed in U.S.A
P.O. Box 297 • Whitewater, WI • 53190
Phone: (262) 473-5514 Fax: (262) 472-6505
GTV – 990/760
V-TWIN
OHVI ENGINE
Draft Approved- 04/24/03

Generac Power Systems GTV-760 Specifications

General

Brand	Generac Power Systems
Model	GTV-760
Category	Engine
Language	English

Summary

Safety and Engine Theory

Safety Definitions and Warnings

Explains hazard level indicators (DANGER, WARNING, CAUTION) and safety symbols.

4-Cycle Engine Operation Explained

Details the four strokes (Intake, Compression, Ignition, Exhaust) of a four-cycle engine.

General Information and Maintenance

Maintenance Schedule and Recommendations

Outlines recommended service intervals and guidelines for fuel and oil.

Troubleshooting Common Engine Issues

Lists common engine complaints and initial diagnostic steps.

Specific Maintenance Procedures

Covers oil filter changes and cleaning the intake screen for optimal performance.

Ignition System Service

Armature and Flywheel Inspection

Details armature testing, removal, installation, and flywheel component checks.

Wiring Harness and Diode Testing

Explains testing of ground wires and diagnosing diode failures in the wiring harness.

Carburetion and Governor Systems

Carburetor Types, Removal, and Cleaning

Lists carburetor models and provides instructions for removal and cleaning.

Carburetor Installation and Governor Adjustment

Covers carburetor installation and static governor adjustment procedures.

Fuel Pump Functionality

Describes the operation and specifications of the engine's pulse fuel pump.

Cylinder Head and Valve Service

Cylinder Head Removal and Disassembly

Outlines the steps for removing rocker arms and disassembling the cylinder head.

Valve and Seat Inspection and Repair

Guides on inspecting valve guides, refacing valves/seats, and checking stem diameter.

Cylinder Head Assembly and Valve Adjustment

Details installing the cylinder head, covers, and adjusting valve clearance.

Electric Starter System Service

Starter Troubleshooting and Test Equipment

Lists common starting problems and the necessary tools for diagnosis.

Testing Starter Motor and Battery

Covers testing the starter solenoid, motor, and checking battery health.

Battery Installation and Recommendations

Provides guidance on battery installation, checking, and recommended specifications.

Alternator System Service

Alternator Output and DC Charging Wire Tests

Explains procedures for testing alternator AC output and DC charging circuit.

Regulator-Rectifier and Battery Charging Test

Guides on testing the regulator-rectifier and confirming the charging system's functionality.

Lubrication System Service

Engine Protection Systems and Oil Level Check

Describes low oil pressure and high-temperature switches and how to check oil level.

Engine Oil and Filter Change Procedure

Details the recommended steps for changing the engine oil and oil filter.

Oil Cooler Maintenance

Covers cleaning and periodic checks for the engine oil cooler.

Engine Disassembly and Crankcase/Bearing Service

Engine Disassembly Steps

Outlines the initial steps for disassembling the engine, removing major components.

Crankcase, Cylinder Bore, and Bearing Checks

Details checks for crankcase integrity, cylinder bore condition, and bearing inspection.

Crankshaft, Camshaft, and Piston Assembly

Crankshaft and Camshaft Inspection

Guides on inspecting crankshaft and camshaft journals, lobes, and gears for wear.

Piston, Rings, and Connecting Rod Service

Outlines procedures for checking piston rings, pins, and connecting rod bearings.

Engine Assembly Procedures

Details steps for installing crankshaft, pistons, connecting rods, and other engine components.

Engine Specifications

Component Dimensions and Tolerances

Lists standard and reject measurements for critical engine parts.

Torque Specifications for Assembly

Provides essential torque values for various fasteners during engine assembly.