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Restoration

• 400fourbits — Honda CB400/4's broken for parts - UK
• Old Bike Barn — Honda CB400 Motorcycle parts
• cmsnl — Honda Motorcycle Parts, vast selection - US
• simple green — Environmentally friendly cleaning products
• 1976 Honda CB400F Restoration Project
• R K Leighton — Specialists in Classic Motorcycle Seats
• Canadian Driver Dremel review — Dremel review

Custom parts

• ttr400 — The most comprehensive range of quality products for the CB350/400 four Hondas of the mid 70's.
• inoxgrp

Historical

• biker e news — CB400F information page - US
• 1973 Honda CB350 Four - Real Classic — When you buy an old bike, you're also buying a lifetime of history. Carmen Sheppard gets to know her classic Honda…

Useful links

• Roukama Motorcycle Parts
• 400 four store

Forum & information

• sohc4 — The SOHC/4 Owners Club & web site was created as a resource for owners of the Honda single overhead cam 4 cylinder motorcycles that were offered from 1969 through 1982.
• Vintage Japanese Motorcycle Club — The UK’s premier club for Japanese bikes fifteen years old and over.
• Hondapeople — Forum site with 400 Four owners and history.
• Vintage Japanese Motorcycle Club - Australian branch — Objective - To foster the preservation, restoration, riding and enjoyment of ownership of Japanese motorcycles more than 15 years old.

Parts

• z1 enterprises — Honda motorcycle parts site - US
• Wemoto — The UK's biggest choice of motorcycle parts for Japanese and European machines
• Roukama Motorcycle Parts
• 400 four store

General

• VintageBike.co.uk — The home of Vintage and Classic Motorcycles…..
• The Classic MotorCycle — Latest from The Classic MotorCycle magazine
• Classic Bikes — Wonderful enthusiast site - a mine of information!
• lorelle

Contributors

• The Single Overhead Cam 4 Forums - SOHC/4 Bikes — Live information from The Single Overhead Cam 4 Forums

Top ten

• Classic Bikes — Wonderful enthusiast site - a mine of information!