exhaust diameter


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hap2
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Motorcycle: 1992 GoldWing 1500SE

exhaust diameter

Post by hap2 » Mon Mar 04, 2019 6:32 pm



What's the outside diameter of a 1500 (92) stock exhaust pipes at the very end?

I need to get some exhaust tubing for it.



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newday777
Posts: 1048
Joined: Tue Jan 11, 2011 5:21 pm
Location: Milford NH summer and fall Oceanside, CA winters(N San Diego) with lots of miles riden between
Motorcycle: 2008 Cabernet Red. Level 4

1983 GL1100A Wineberry 36,000 miles

1975 CB750 K5 Planet Blue 7,800 miles

1976 CB750 K6 Anterris Red 25,000 miles

Past rides
1999A Restored and sold at 19,000 miles

1999SE Totaled by cager at 105,000 miles

Re: exhaust diameter

Post by newday777 » Wed Mar 06, 2019 8:43 am

The end of the header?
The end of the crossover collector box?
Or the end of the muffler?

What are you actually doing???

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hap2
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Re: exhaust diameter

Post by hap2 » Wed Mar 06, 2019 10:26 am

From the very end of the exhaust tips. The bike now is in a garage facing the bay door about 15' away. I was just thinking of getting some rubber (or whatever) tubing to direct the exhaust fumes out of the bay a good distance outside. I could just start the bike & let it warm, but just a bit concerned about the carbon monoxide as I'd probly have to keep it running for 5 or 10 min in the enclosed space.

I dunno where I can get used exhaust tubing for cheap, so open to suggestions.

Thank u

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newday777
Posts: 1048
Joined: Tue Jan 11, 2011 5:21 pm
Location: Milford NH summer and fall Oceanside, CA winters(N San Diego) with lots of miles riden between
Motorcycle: 2008 Cabernet Red. Level 4

1983 GL1100A Wineberry 36,000 miles

1975 CB750 K5 Planet Blue 7,800 miles

1976 CB750 K6 Anterris Red 25,000 miles

Past rides
1999A Restored and sold at 19,000 miles

1999SE Totaled by cager at 105,000 miles

Re: exhaust diameter

Post by newday777 » Wed Mar 06, 2019 10:37 am

If you can't ride it to fully heat the exhaust to full temperature you will rot out the exhaust from the inside out.
The cold exhaust metal gets hit from the hot engine exhaust gases causing condensation in the exhaust system. Idling will not burn off that condensation. Only start it if you can ride it for an hour ride to get to full temperature.

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hap2
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Re: exhaust diameter

Post by hap2 » Wed Mar 06, 2019 11:20 am

ok, but all I wanna do is be able to start & run it w/o a lotta monoxide filling up the garage.

Maybe I'll try cheap bicycle tire tubing

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newday777
Posts: 1048
Joined: Tue Jan 11, 2011 5:21 pm
Location: Milford NH summer and fall Oceanside, CA winters(N San Diego) with lots of miles riden between
Motorcycle: 2008 Cabernet Red. Level 4

1983 GL1100A Wineberry 36,000 miles

1975 CB750 K5 Planet Blue 7,800 miles

1976 CB750 K6 Anterris Red 25,000 miles

Past rides
1999A Restored and sold at 19,000 miles

1999SE Totaled by cager at 105,000 miles

Re: exhaust diameter

Post by newday777 » Wed Mar 06, 2019 11:40 am

You'll have to measure yours as we don't know if you have the stock or accessory extension on them.


Pretty easy to find hose online.
https://www.bing.com/search?q=garage+ex ... ORM=CHROMN

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hap2
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Re: exhaust diameter

Post by hap2 » Wed Mar 06, 2019 11:45 am

right u r. ok thank u

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brettchallenger
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Location: Driffield, the East Riding of Yorkshire, England
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Re: exhaust diameter

Post by brettchallenger » Wed Mar 06, 2019 12:44 pm

If the door is open you will be ok. The catalytic converter will get rid of most of the carbon monoxide anyway.
Never trust a nation whose armed forces goose-step

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hap2
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Re: exhaust diameter

Post by hap2 » Wed Mar 06, 2019 12:52 pm

That's true & I never even thot about that. Thanks for the reassurance.

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WingAdmin
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Re: exhaust diameter

Post by WingAdmin » Wed Mar 06, 2019 4:18 pm

brettchallenger wrote:
Wed Mar 06, 2019 12:44 pm
If the door is open you will be ok. The catalytic converter will get rid of most of the carbon monoxide anyway.
There's no catalytic converter in a GL1500.

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hap2
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Re: exhaust diameter

Post by hap2 » Wed Mar 06, 2019 4:41 pm

so now what do I do? Bicycle tubing?

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brettchallenger
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2015 Jawa 350 (2-stroke)
2018 Suzuki V-Strom 650

Re: exhaust diameter

Post by brettchallenger » Wed Mar 06, 2019 5:46 pm

Ooops, you're right. Was thinking of my other Honda. I should know too, been trying to get the exhaust to move for the last three weeks so I can change the rear tyre!
Never trust a nation whose armed forces goose-step

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Sidcar
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Re: exhaust diameter

Post by Sidcar » Thu Mar 07, 2019 1:32 pm

At one time you could buy exhaust extractor pipe. It was a flexible hose with a rubber cone at one end si it would fit over different sized exhaust pipe. Try garage equipment websites. I don't remember it being cheap.

Sid.

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CrystalPistol
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1997 GL1500SE Lehman Trike

Re: exhaust diameter

Post by CrystalPistol » Thu Mar 07, 2019 2:19 pm

hap2 wrote:
Wed Mar 06, 2019 10:26 am
From the very end of the exhaust tips. The bike now is in a garage facing the bay door about 15' away. I was just thinking of getting some rubber (or whatever) tubing to direct the exhaust fumes out of the bay a good distance outside. I could just start the bike & let it warm, but just a bit concerned about the carbon monoxide as I'd probly have to keep it running for 5 or 10 min in the enclosed space.

I dunno where I can get used exhaust tubing for cheap, so open to suggestions.

Thank u
15 feet? You can get flexable exhaust tubing, but if you get 30 feet or more, not super cheap. Might use shorter pieces, a y to get 2 into 1, then run a single line out under door. I think you're gonna find the chrome tips about 2" OD or there abouts, but inside the real tips coming out of the mufflers chamber is closer to 1" or 1-1/4", so a single 2+" OD stick of pipe laying across floor should do.

Check Hardware for water pipe prices as well, exhaust/muffler shops for pipeing or Y, Advance auto for the flex pipe?
Image

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RoadRogue
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Re: exhaust diameter

Post by RoadRogue » Thu Mar 07, 2019 2:22 pm

Hap2 , do you own a measuring tape? It's the only way to be sure you get the correct size for your needs. 8-)
Ride safe, Todd
Over night campers welcome

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Rednaxs60
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Re: exhaust diameter

Post by Rednaxs60 » Thu Mar 07, 2019 2:55 pm

Use a small fan, say 15-20 inch and just open the garage door enough for the fan to blow out. It will ventilate the garage. Something like when a fire department uses a fan to remove smoke from the inside of a building. I do it all the time.
"When you write the story of your life, don't let anyone else hold the pen"

Ernest

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fibersport
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Re: exhaust diameter

Post by fibersport » Sat Mar 16, 2019 10:58 am

I think you're overthinking this, why not just set the choke as needed, start it and let it warm up for a minute or so and then ride it easy until it's all warmed up? Or maybe start it up, wheel it outside and then do a pre-ride check while it warms up .....

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hap2
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Re: exhaust diameter

Post by hap2 » Sat Mar 16, 2019 11:07 am

I can do, but as I was saying, even 2 or 3 min of gentle idling can fill a limited space place with carbon monoxide I don't need, but thanx for the feedback anyway



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