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BMW R71 User Manual

BMW R71
26 pages
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BMW R71 Specifications

General IconGeneral
Displacement746 cc
Bore x Stroke78 mm x 78 mm
Transmission4-speed manual
Fuel SystemCarburetor
Front SuspensionTelescopic fork
BrakesDrum brakes
Final DriveShaft drive
Fuel Capacity14 liters
Production Years1938-1941
Engine TypeFlat-twin, 4-stroke
Power Output22 hp (16 kW)
Rear SuspensionPlunger

Summary

Controls

Hole for ignition key

Location and function of the ignition key.

Ignition lever

Adjusting ignition timing based on engine speed.

Clutch lever

Function of the clutch lever for power transmission.

Hand brake lever

Operates front wheel brake, used with foot brake.

Rotary grip gas control

Controls gas slide valve for engine speed.

Pedal gear control

Lever for gear changes.

Foot brake lever

Operates rear wheel brake.

Kick starter

Starting the engine via a lever.

Hand gear lever

Lever for selecting neutral gear position.

Short Running Instructions

The Running-in Period

Admissible maximum speeds

Maximum allowed speeds during break-in.

Changing the Tyres

Disassembling the front wheel

Steps to remove the front wheel.

Disassembling the rear wheel

Steps to remove the rear wheel.

Cleaning the Carburettors

Care of the Machine

Lubrication

General lubrication importance and checks.

Maintenance

Ongoing maintenance tasks for the machine.

Adjustment of valve clearance

Procedures for adjusting valve clearance.

Care of ignition system

Brakes

Front and rear wheel brakes

Description of brake systems.

Clutch

Engine

Operation

Explanation of the four-stroke engine cycle.

Transmission gear

Frame

Front wheel fork

Description and operation of the telescopic front fork.

Rear wheel spring suspension

Details of the rear wheel suspension system.

The R 51 SS Machine

Technical Data

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