Honda ST50 / ST70 / CT70 Shop Manual

Complete Honda motorcycle workshop guide covering ST50, ST70, and CT70 models. Includes maintenance procedures, technical specifications, and repair instructions for engine, transmission, and electrical systems.

4.7starstarstarstarstar_half(3)
visibility Preview Available
Honda Honda ST50 / ST70 / CT70 Shop Manual manual page preview - page 1 of 49

Sample pages from the Honda ST50 / ST70 / CT70 Shop Manual manual

Honda Honda ST50 / ST70 / CT70 Shop Manual manual preview page 1 - thumbnail
Honda Honda ST50 / ST70 / CT70 Shop Manual manual preview page 3 - thumbnail
Honda Honda ST50 / ST70 / CT70 Shop Manual manual preview page 4 - thumbnail
Honda Honda ST50 / ST70 / CT70 Shop Manual manual preview page 5 - thumbnail
info_outline Click thumbnails to preview different pages
$15.35 (incl. VAT) Original OEM Factory Manuals & Data Instant Download / No Shipping Fees
OR BUY NOW
verified_user
Lifetime Access
Re-download anytime
flash_on
Instant Download
Get it immediately
lock
Secure Payment
PayPal
Technical Safety Notice
keyboard_arrow_down

This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Honda Models Covered & Key Technical Specifications

Models: Honda ST50, ST70, CT70
Sub-models / Variants: U.K. Type, General Export Type, U.S.A. Type
Build Years: 1969–1976
Technical Data:

  • Engine type: Air-cooled, 4-stroke O.H.C single-cylinder
  • Displacement: 49 cc (ST50), 72 cc (ST70, CT70)
  • Compression ratio: 8.8:1
  • Transmission: 3-speed constant mesh
  • Clutch: Wet, multi-plate, automatic centrifugal type
  • Fuel capacity: 2.5 L (ST50/70), 5.5 L (CT70)
  • Ignition: Flywheel magneto
  • Battery: YUASA B60-6 6V 2AH
Technical Specifications
keyboard_arrow_down
Document Number / Seller:
25065 / Richard Crawford
File Size:
31.98 MB
File Type:
PDF
Language:
English
Pages:
49
Printable:
Yes
Category:
Bike
Last updated / verified
Aug 11, 2025

Honda Manual Features & Content Preview

Honda ST50, ST70, and CT70 Workshop Manual 1969–1976

  • Covers 1969–1976 Honda ST50, ST70, and CT70 trail and road variants including U.S.A. and export market configurations
  • Third-party publication © 2008 UserFriendlyCDs, reproducing the original 1970 Honda Motor Co., Ltd. technical documentation
  • Contains 47 technical diagrams, 4 detailed wiring schematics, and 2 extensive torque specification tables
  • File delivered as a direct download the moment payment clears
  • Indexed PDF search covers every chapter and appendix
  • Stored against your account so you can retrieve it after a hard-drive loss
  • This 49-page resource maintains the original factory data for the 4-stroke O.H.C. single-cylinder engine platform common to these classic mini-bikes

Engine and Chassis Documentation

The 1969–1976 Honda ST50, ST70, and CT70 workshop manual contains detailed technical descriptions for the complete power unit and chassis. Major segments document the removal and installation of the engine, the lubrication system, and the internal components of the 3-speed constant mesh transmission. Special sections highlight the piston, crankshaft, and cylinder head assembly, providing data on cam chain tensioner operation and kick starter mechanism construction.

Frame component documentation provides insight into the front fork, rear fork, and cushion assemblies. Further details address the internal expanding shoe braking systems, wheel hub construction, and maintenance of the drive chain, with specific reference to the air cleaner element service.

Technical Data and Electrical Specifications

Specification Highlights

This Honda ST50, ST70, and CT70 manual lists essential clearance values, torque limits, and performance metrics for the O.H.C. engine. Valve clearance for the intake is listed at 0.11–0.20 mm in the cylinder head specification table. Cylinder head bolt torque is specified at 6.5–9 ft-lbs in the engine data section. The ST70 maximum horsepower is documented at 5.6 hp at 8000 rpm.

Electrical data features wiring diagrams for various export and domestic models, including the U.K. and U.S.A. specifications. These documents define the flywheel AC generator performance and battery charging rates for the 6V electrical system. Learn more about how factory workshop documentation is structured for these models.

Note: This page is a contents overview for the manual. It does not provide repair or diagnostic instructions.

Document Reference: Third-party: UserFriendlyCDs — original OEM identity not confirmed

Manual FAQ, Purchase & Download Details

Are cylinder head details such as valve seating, valve guide measurements, and tightening sequences included in the engine chapters? keyboard_arrow_down

Engine chapters contain comprehensive exploded views, specification tables, and reference diagrams for the cylinder head and valve train assembly.

Does the manual provide coverage for the ST50, ST70, and CT70 model variations? keyboard_arrow_down

Document covers the Honda ST50, ST70, and CT70 series manufactured between 1969 and 1976. It includes model-specific specification tables and system references for each of these variants.

Can I expect to see publication information and document identifiers within the shop manual contents? keyboard_arrow_down

Manual features a formal foreword that establishes the publication context and purpose of the information provided. It serves as a historical reference document originally produced by the manufacturer to support service shops. All technical sections and specifications are grounded in the official data from the 1970 publication edition.

Customer Reviews

Read what our customers say about this Honda Bike manual and share your own experience.