Internally Collapsed Header on Honda GL1000?
Collapsed GL1000 Header
Example courtesy of Steve Seamans of NGWClub Forum
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One in a Million! Allan Zahrt’s Million Mile GL1000
How many million mile motorcycles are there? Answer below. Read on!
Allan Zahrt with his Million Mile GL1000!
In the early seventies Honda launched without fanfare an ambitious project. Internally, Honda had a bold plan: to build the world’s best motorcycle. Not just the best Japanese motorcycle – the best motorcycle available anywhere in the world. Period! The eventual result of this project was revealed to the world at the Cologne, Germany International Motorcycle Show (INTERMOT) in October, 1974 as the GL1000.
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“Insensitive” Idle Mixture Fuel Screws?
I often field this common complaint:
“I’ve noticed that turning the idle mixture screws nets different results on each of the individual carbs on my Honda GL1000:
- #1 will kill the motor if turned all the way in
- #3 has NO EFFECT on engine speed regardless of where it is set
- #2 has what might be considered a “normal” effect
- #4 has only a very slight effect if any at all
What does this mean????? I’m a bit confused? Help please!!!!”
GL1000 Idle Mixture Fuel Screw
Honda GL1000 Timing Advance Unit Details
OEM Honda Timing Advance Unit Details:
This simple device is critical to proper ignition function on Honda GL1000s!
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Carb Cleaning (in situ lazy method)
Fuel Filter Mounting Tips
Randakk’s High Performance Fuel Filters have many technical advantages and are super easy to install as demonstrated in this short video by by Shasta Smith – the Vintage Monkey.
More details on Randakk’s High Performance Fuel Filters here.
Reasonable Part Substitutions for Honda GL1000s
You can never go wrong with OEM Honda parts. Fit, function, and reliability are never an issue. If you have a show bike, authenticity requirements dictate that you stick with Honda parts wherever possible. Of course, if show judges are looking at things like your timing belts, then you have bigger problems!
The following chart lists reasonable substitutes that have performed well for me and many others. This information is available elsewhere, but I decided to post it here for convenience since I’m often asked. Prices are considerably less than the equivalent Honda parts.
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Early vs. Late Carb Mixing and Matching / Honda GL1100 Carbs on Honda GL1000? + Honda GL1000 Carb Specs
You might consider this item: Randakk’s GL1000 Carb Rebuild Video
GL1000 Carb Interchange Issues
Honda GL1000 Carbs Restored by Randakk Customer Jouko Tomminen of Lahti, Finland
Honda GL1000 Water Pump R&R Details
“Prepped” Front Cover – viewed from rear. Note crucial by-pass oring detailed below.
(Special thanks to Art Jernberg for improving the captions above.)
Ignition Quirks…”Split-Timing” Technique
For the static timing light needed for this procedure Click here
Robert Overby wrote a very interesting article titled “Improving Your GL1000’s Performance” which appeared in Wing World in the June 1995 issue. You can find this article by searching the GWRRA Message Board Archives (see my links page). This is a GREAT article that explains some weird design problems unique to the GL1000 ignition system as well as methods to resolve them. I guess I’m a bit of a contrarian, but I like breaker point ignition systems. In my opinion, no one needs to resort to an electronic ignition system to have a decently tuned GL1000.
