7 Volt Regulator Problems

A “step-down” auxiliary voltage regulator drives the fuel and temperature gauges on GL1000s. This clever device provides a constant 7V input voltage to power these gauges. This effectively buffers the wide normal fluctuations in battery voltage. Without the step-down regulator, your gauge readings would be very unreliable because main battery voltage varies with rpm, load, stator output and accuracy of the voltage regulator. Many older cars use this same technology for the dashboard.

7 Volt Regulator

7 Volt Auxiliary Regulator 

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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!

Spark Plug Tricks

Here’s some information on spark plugs which old farts probably know, but young whippersnappers might not have seen before.

NGKD8ESL Spark Plug

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Comprehensive GL1000 Charging System Troubleshooting

This Tech Tip is provided courtesy of Ray Proebstl of Munich, Bavaria, South Germany. Ray is a professional educator in the field of electronics. He is a long-time avid GoldWing enthusiast.

Here are the components of the GL1000 charging system.

GL1000 Electrical Diagram

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Ballast Resistors Explained + Ballast Testing Procedure

Like most battery/coil setups of this vintage, early GoldWings feature a “wasted spark” ignition design. This clever design was chosen by the engineers to save weight and space. Thus, only 2 coils are required to fire 4 spark plugs. All without a distributor as in most cars of this era.

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Effect of Excessive Electrical Loads on Ignition Performance

The electrical/charging system on a GL1000 is well-designed and fairly reliable compared to its contemporaries. In fact, stator problems are quite rare compared to later four cylinder GoldWings. Most charging problems on GL1000s are fairly easy to diagnose and remedy. The usual culprits are poor battery cable/starter relay connections, bad 30 amp master fuse and weak batteries. Occasionally, a voltage regulator will fail. Even more rare is rectifier failure. Stator reliability is a good thing, since replacement requires engine removal…a rather laborious task.

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