Internally Collapsed Header on Honda GL1000?

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!

July 2017

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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Honda GL1000 Timing Advance Unit Details

OEM Honda Timing Advance Unit Details:
Honda-GL1000-Ignition-Advancer

This simple device is critical to proper ignition function on Honda GL1000s!
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The Single Most Common Carburetor Problem (Clogged Pilot Jets) and How To Fix – by Ari Henning

I’m happy to share this excellent video tip created by Ari Henning of Motorcyclist Magazine. Ari is a notorious AHRMA road-racer and all-around swell guy!

This is excellent information.

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Honda GL1000 Carb Code Location

This is covered in my GL1000 Carb Rebuild Video, but just in case you haven’t made that great investment…

Here’s a photo showing the location of the all-important GL1000 Carb Codes:

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Jump Starting a Vintage Motorcycle?

Warning from Randakk: Controversial Material! 

I am not a big fan of “jump starting” a motorcycle. In my view, this procedure should generally be avoided. I believe it’s better to anticipate, prevent, diagnose and fix problems before they degenerate into roadside “no starts.” But – sometimes bad things happen no matter how well prepared you are. Jump starting can be done in an emergency situation with relative safety if you follow these tips by Howard Halasz. I truly hope you will never need this information!

Battery Jumpstarting
“Dead” Battery on Left.     “Donor” Battery on Right.

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General Honda GL1000 Troubleshooting Guide

You might consider this item: Randakk’s GL1000 Carb Rebuild Video

Note: You should do a valve adjust and compression test (in that order!) before doing ANY ignition or carb tuning. GL1000s will run poorly when valve lash is not set exactly to spec. Fortunately, valve lash stays “in spec” for a long time once properly set.

Compression Testing 1

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Recommendations for New Owners of a Honda GL1000

Here’s a list of specific recommendations I’d like to share with any new owner of an early Honda GL1000 (1975-1977). These are based on my many years of experience owning, riding, restoring and servicing these bikes. These address frequent questions I get and incorporate preventions for most of the common problems I’ve seen over the years.

Spring Fling - Elsie

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GL1000 Muffler Replacement Options

Need a replacement muffler for your Honda GL1000?  Then you probably know already that this can be a vexing proposition!

GL1000 muffler

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Dyna/S Installation / Troubleshooting on the Honda GL1000

Setting up a Dyna/S ignition on a GL1000 can be a vexing proposition.  The good news is that done properly – it’s a “once and done” proposition!