Honda Float Bowl Drain Screw Placement

Honda GL1000 float bowl drain screws will be difficult to loosen for periodic maintenance if the float bowls are installed onto the wrong carbs.

There are specific left/right carb bowls plus a special bowl for carb #1 (with vacuum hose barb). The bowls will bolt up and run fine on the wrong carbs, but it will be hard to get a screwdriver blade onto the drain screws when the carbs are installed on the bike.

Carb Bowl Drain Screws

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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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Lazy / Slow Return to Idle (or Erratically High Idle)

You might consider Randakk’s GL1000 Carb Rebuild Video

Are you plagued with a bike that runs great from about 2000 RPMs and up, but refuses to idle reliably below that speed? Does it sometimes idle OK, but often “hang-up” at a higher speed and take forever to return to idle? Do you have to put a small load on the engine (by letting out the clutch a bit when stopped and in gear) to get the engine to return to idle speed? Does the idle speed seem overly sensitive to changes in ambient and operating temperature? If so, read on.

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Honda GL1000 Carb Removal

Please consult a manual before you begin for additional information on carb removal. Do not attempt removing your carbs if you lack mechanical aptitude, proper tools or general intelligence. While I’m on the topic of manuals, I rely on three: the Official Honda GL1000 Workshop Manual, plus the ones from Clymer’s and Haynes. Generally, the Honda manual is sufficient, but sometimes the others provide helpful cross-reference.

I strongly recommend that you obtain at least one good manual before you delve into any repairs or maintenance. A good source for the Honda manual is: https://www.helminc.com/helm/homepage.asp

My lawyer asks me to remind you that you are advised to heed all recommended safety practices detailed in the manuals listed above and that you assume ALL risks.

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Fuel Sender Issues

This Tech Tip is provided courtesy of Howard Halasz – noted early ‘Wing Guru. Howard is a frequent contributor of technical columns and other information to GWRRA’s Wing World Magazine. This Tech Tip applies to any 4 cylinder GoldWing (GL1000, GL1100 or GL1200). 

“OK! Now that you’ve overhauled your carburetors using your Randakk’s® Master Carb Overhaul Kit and installed them on your Gold Wing, you find out that your Wing now performs better than it ever did since you owned it. You check the lights, turn signals, horn, tachometer, temperature gauge, brakes, and turn signals. Everything looks and sounds great!! Then you notice that your fuel gauge shows EMPTY, although you have a full tank.

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