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Author Topic: Screws in the intake.  (Read 471 times)

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Offline Ace Blackwell

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  • 1977 CB550F - Resurrection in progress
Screws in the intake.
« on: August 07, 2019, 08:12:09 AM »
I’ve got a 77 550F. I noticed a screw in each intake pipe. Does anyone know their purpose?  Just curious.
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1977 CB550F Work in Progress

Online bryanj

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Re: Screws in the intake.
« Reply #1 on: August 07, 2019, 08:18:52 AM »
Vacuum gauge adaptor points, its jn the workshop manual
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Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

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Offline Ace Blackwell

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Re: Screws in the intake.
« Reply #2 on: August 07, 2019, 08:27:58 AM »
Makes sense.  Thanks
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1977 CB550F Work in Progress

Offline rustyrescue

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Re: Screws in the intake.
« Reply #3 on: August 07, 2019, 12:38:18 PM »
yes and always worth doing, just set the carbs on my 400F and it transformed it from a rattly sounding nail to a quiet lovely sounding motor. All the clutch basket and primary rattling/chattering gone!
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