Author Topic: Header clamp flange question  (Read 410 times)

Offline nwguy

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Header clamp flange question
« on: May 08, 2025, 12:08:58 PM »
Here's a pic of one of my Bassa's header pipe clamps:





My parts diagram shows a flange with fins. My 08' Norge had one with fins, and used aluminum lock nuts that wouldn't damage the studs when tightened. I'm guessing someone didn't have the right part(s) and used these. Do you see any problem with this?
1999 Moto Guzzi Bassa, 06 Yamaha Morphous

Past: 2020 Husky Svartpilen, 08 Norge, 07 Burgman, 3 Buell Lightnings, 02 BMW R1150RS, 05 Ducati Multistrada, Kawasaki Concours, Kawasaki Vulcan 1500 Classic, 02 Honda ST110, Aprilia Falco, Suzuki VX800, Yamaha Radian, Suzuki TS185, Yamaha RD400

Offline Tom H

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Re: Header clamp flange question
« Reply #1 on: May 08, 2025, 12:20:13 PM »
My EVT has that style.

Tom
2004 Cali EV Touring
1972 Eldo
1970 Ambo V1000
1973 R75/5 SWB with Toaster
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1953 Triumph 6T (one day it will be on the road!)

Offline nwguy

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Re: Header clamp flange question
« Reply #2 on: May 08, 2025, 12:26:29 PM »
My EVT has that style.

Tom

Do yours use locknuts instead of 2 regular nuts like mine?
1999 Moto Guzzi Bassa, 06 Yamaha Morphous

Past: 2020 Husky Svartpilen, 08 Norge, 07 Burgman, 3 Buell Lightnings, 02 BMW R1150RS, 05 Ducati Multistrada, Kawasaki Concours, Kawasaki Vulcan 1500 Classic, 02 Honda ST110, Aprilia Falco, Suzuki VX800, Yamaha Radian, Suzuki TS185, Yamaha RD400

Offline Tom H

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Re: Header clamp flange question
« Reply #3 on: May 08, 2025, 01:08:03 PM »
This is what I have. IIRR it was like this when I got it. Nothing wrong with the double nut you have. That way they won't come loose and you also don't have to tighten them so hard that it bends the flange.





Tom
2004 Cali EV Touring
1972 Eldo
1970 Ambo V1000
1973 R75/5 SWB with Toaster
1973 R75/5 LWB
2007 HD Street Bob
1953 Triumph 6T (one day it will be on the road!)

Offline nwguy

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Re: Header clamp flange question
« Reply #4 on: May 08, 2025, 02:41:17 PM »
Excellent. Thanks.
1999 Moto Guzzi Bassa, 06 Yamaha Morphous

Past: 2020 Husky Svartpilen, 08 Norge, 07 Burgman, 3 Buell Lightnings, 02 BMW R1150RS, 05 Ducati Multistrada, Kawasaki Concours, Kawasaki Vulcan 1500 Classic, 02 Honda ST110, Aprilia Falco, Suzuki VX800, Yamaha Radian, Suzuki TS185, Yamaha RD400

Offline Moparnut72

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Re: Header clamp flange question
« Reply #5 on: May 09, 2025, 08:48:09 AM »
The radial aircraft engines used Palnuts as lock nuts. Easy to line up the points on the nuts so that they looked good. You would also have some threads showing.
kk
« Last Edit: May 09, 2025, 08:49:54 AM by Moparnut72 »
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Offline marcmorrison

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Re: Header clamp flange question
« Reply #6 on: May 10, 2025, 10:34:00 AM »
I have the original FINNED flanges on my Bassa, but aside from some minimal gain in cooling, I don't see any problem with what you have.
1999 MG Bassa (pearl white)

 

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