Hondachopper Garage
Since most shops REFUSE to work on choppers, we've got to educate ourselves and build our skills in the garage. This will be the place to share your hard-won knowledge.
Last Updated: 12/18/2009
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. General Info


Hondachopper F.A.Q. A nice beginning to a much need F.A.Q. (Frequently Asked Questions). Many THANKS to Fixn2 for putting this together!


OldMagic's CB750 F.A.Q. Check it out.


Metric to SAE bit/hole coversions Conversion table for SAE to Metric drill equvalents.


Vintage 750 Articles Old chop mag articles on performance tweaks, reviews, and other roadworthy reading.


. Frame and Chassis


Removing Springs from Amen Savior Thanks to G.O.T.F. Member MickD for putting this together!


Legion CB 750 Frame Frank Woslum used his AutoCAD skills and detailed a kick-ass CB750 frame that any aspiring frame builder can use. The pics are LARGE (in size, not file size) so make sure you view @ 100%, otherwise the drawing will appear distorted.


Mounting a brake on a
Springer front end
"How do I mount a brake on a Springer fork?" seems to be a frequently asked question. So here is an explanation of the principals involved. MANY THANKS to Blackjack for writing this up!


Frame Alterations: 
The Art of Doing it Right
An excellent article on how to fit metal shapes, how and where to place different types of welds, welding sequence, and more. (Thanks! 836Rigid)


"Konging" a frame A walkthrough put together by Sixshooter on how to "Kong" a stock frame.


Hosfeld Tube Bender Plans to build your own tube bender.


Crime Scene Choppers Frame Jig CSC's plans to build your own frame jig.


Shortening Stock Forks Step by Step on how to shorten stock forks thanks to Olgraybeard and Bigmcgiv


Wiring and Electrical


Santee Wiring Instructions Wes Erickson was kind enough to throughly detail instructions for wiring up your Santee box. THANKS WES!


CB750 K1 - Stock Wiring Diagram Um, the Stock K1 Wiring Diagram...


Regulator / Rectifier Diagram Simple to follow diagram drawn up (literally!) by Rick. THANKS Rick!


Simplified Wiring Diagram You may find this useful too if you're in electrical HELL!! THANKS to RICK KEEVER for the addition of color and correction to the regulator & ignition switch. (updated 8/14/04)


Finch Box Wiring Diagram How to wire a Finch box thanks to Mr. Barnett.


Simplified Dyna Diagram Simplified Dyna ignition wiriing diagram provided by Jaysco.


Step-by-Step Guide to
Wiring Your Honda Chopper
Here's a great article from the pages of an August 1975 Street Chopper magazine. Thanks for the scanning!


Build Your Own Santee Wiring Box Many thanks to Keith Barnett for drawing out these simple diagrams!


Original Santee Instructions A scan of the original Santee chopper wiring diagrams. Big thanks to G.O.T.F. member Paladin333 for sharing 'em!


ARD Magneto Manual Complete ARD Magneto installation instructions and manual.


Martek 440 Instructions Martek 440 Electronic Igntion instructions (could use better scans)


Dyna S Installation Dyna S Installation instructions in PDF format.


. Engine and Drive Train


Porting the CB750 If you're thinking about increasing your CB750's displacement to add horsepower, then you'll certainly be interested in how the porting process happens.


SOHC.net's Technical Library Excellent archive of CB750-related technical articles and tutorials! HIGHLY RECOMMENDED!


Carb Tuning and Misc. Info A collection of tips, tricks and walkthroughs for those hated carbs.


Keihin Carburetor Tuning Guide A nice primer on jetting and tuning your Keihin carbs.


Carburetor Specs for U.S. CB750
Models 1969-1983
A technical specification chart for Keihin carbs.


Intake Systems and Manifolds Shots of various intakes systems used on the SOHC CB750 (POSA, Weber, etc.)


Optimizing the Standard
SOHC4 Ignition System
An excellent introduction to the CB750 points ignition system by Wrenchbender.


Sprocket Ratio Chart Sprocket gearing ratio chart.


Tire Conversion Charts Common Metric - Alphabetical - Inch tire charts and speed/load rating codes.