Royal Enfield 250/350cc Workshop Maintenance Manual

A workshop maintenance manual for Royal Enfield motorcycles covering engine data, specifications, and service operations for various 250cc and 350cc models.


Royal Enfield 250/350cc Workshop Maintenance Manual - cover page
Brand
Royal Enfield
Category
Motorcycles
Document type
Service Manual
Language
English
Pages
96
File format
PDF
File size
3.7 MB
Published
16 October, 2026
Updated
16 October, 2026
MD5 checksum
ADCF3AABE0EB961BB0F5A4AD48EF65B0

About this manual

This document serves as a workshop maintenance manual for a range of Royal Enfield motorcycles, including the 250 Clipper, Crusader, Crusader Sports, Super 5, Continental, 350 New Bullet, Trials, and Continental GT. It provides comprehensive technical data and service operations for both 250cc and 350cc engine models.

What's inside

  • Engine Data
  • Engine Specification
  • Service Operations (Engine in Frame)
  • Service Operations (Engine Removed)
  • Gearbox and Clutch
  • Carburettor
  • Lighting/Ignition System
  • Battery
  • Frame
  • Front Fork

Specifications

Cubic Capacity (250cc)247.4cc (15.094 cu.in)
Cubic Capacity (350cc)346cc
Stroke (250cc)64.5mm (2.5394")
Bore (250cc)69.876mm (2.751")
Compression Ratio (250 Clipper)7.5 to 1
Compression Ratio (Crusader Sports)8.5 to 1
Compression Ratio (Super 5)9.75 to 1
Compression Ratio (350 Bullet)7.5 to 1
Contact Breaker Points Gap0.015"
Spark PlugChampion L7 or L10S

Frequently asked questions

What is the cubic capacity of the 250cc models?

The cubic capacity for 250cc models is 247.4cc (15.094 cu.in).

What is the stroke length for the 250cc engine?

The stroke length for the 250cc engine is 64.5mm (2.5394").

What is the recommended contact breaker points gap?

The recommended contact breaker points gap is 0.015 inches.

Which spark plugs are recommended for these motorcycles?

The recommended spark plugs are Champion L7 or L10S.

Download PDF (3.7 MB)