Double checking compatibility with Sportster Mufflers


Information and questions on GL1000 Goldwings (1975-1979)
  • Sponsored Links
Lastwachter
Posts: 123
Joined: Sun Apr 06, 2014 9:47 pm
Location: Pennsauken, NJ
Motorcycle: 1978 Honda GoldWing
2000 Buell Blast

Double checking compatibility with Sportster Mufflers

Postby Lastwachter » Tue Apr 15, 2014 6:20 am



These sportster mufflers are available to me for free. From what I have read they will work on my 78 GL1000 without having to rejet. Can someone tell me what that hole is on the side of the muffler and if anyone knows of any issues I would having using these and following the how-to instructions on this page?

Thanks!
Attachments



User avatar
dingdong
Posts: 2863
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500
2004 NRX1800 Rune

Re: Double checking compatibility with Sportster Mufflers

Postby dingdong » Tue Apr 15, 2014 7:19 am

They are the same mufflers I have on my 76. I love them and they work well with no carb mods needed. As for the holes, most folks just weld a plug in there. I actually used them and built a crossover pipe for mine. At the time, 11 years ago, I thought it was needed because of the original design but it isn't. Just plug them and you will be okay.
Tom

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

SnoBrdr
Posts: 326
Joined: Fri Mar 07, 2014 9:01 am
Location: Providence, Rhode Island
Motorcycle: 1978 GL 1000

129K Original Owner

Re: Double checking compatibility with Sportster Mufflers

Postby SnoBrdr » Tue Apr 15, 2014 10:03 am

dingdong wrote:They are the same mufflers I have on my 76. I love them and they work well with no carb mods needed. As for the holes, most folks just weld a plug in there. I actually used them and built a crossover pipe for mine. At the time, 11 years ago, I thought it was needed because of the original design but it isn't. Just plug them and you will be okay.


Did you run the adapter from the header to the pipes themselves or did your's fit right on ?

User avatar
dingdong
Posts: 2863
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500
2004 NRX1800 Rune

Re: Double checking compatibility with Sportster Mufflers

Postby dingdong » Wed Apr 16, 2014 7:11 am

I used an adapter for mine. If I remember correctly it was just a length of 1 3/4 exhaust pipe. The length of the adapter was determined by the positioning of the crossover. As I stated most folks don't use the crossover so exact length isn't critical.
Tom

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.

Lastwachter
Posts: 123
Joined: Sun Apr 06, 2014 9:47 pm
Location: Pennsauken, NJ
Motorcycle: 1978 Honda GoldWing
2000 Buell Blast

Re: Double checking compatibility with Sportster Mufflers

Postby Lastwachter » Wed Apr 16, 2014 4:16 pm

Great. Ok, Ill get a hold of the mufflers. Have the holes welded up. Then grab two 1 3/4" exhaust joiners (pipe and clamps) and finally create a bracket to attach it to the frame.

Thanks for your help guys. Ill be sure to post pics once I get that done.

SnoBrdr
Posts: 326
Joined: Fri Mar 07, 2014 9:01 am
Location: Providence, Rhode Island
Motorcycle: 1978 GL 1000

129K Original Owner

Re: Double checking compatibility with Sportster Mufflers

Postby SnoBrdr » Wed Apr 16, 2014 4:52 pm

Lastwachter wrote:Great. Ok, Ill get a hold of the mufflers. Have the holes welded up. Then grab two 1 3/4" exhaust joiners (pipe and clamps) and finally create a bracket to attach it to the frame.

Thanks for your help guys. Ill be sure to post pics once I get that done.


I just read another post, elsewhere, and it was said that the guy used a 1 7/8 x 2 OD adapter.

Guess you should measure them 1st.

User avatar
dingdong
Posts: 2863
Joined: Thu Apr 08, 2010 8:35 am
Location: Oklahoma City
Motorcycle: 1976 gl1000
1993 gl1500
2004 NRX1800 Rune

Re: Double checking compatibility with Sportster Mufflers

Postby dingdong » Thu Apr 17, 2014 8:40 am

SnoBrdr wrote:
Lastwachter wrote:Great. Ok, Ill get a hold of the mufflers. Have the holes welded up. Then grab two 1 3/4" exhaust joiners (pipe and clamps) and finally create a bracket to attach it to the frame.

Thanks for your help guys. Ill be sure to post pics once I get that done.


I just read another post, elsewhere, and it was said that the guy used a 1 7/8 x 2 OD adapter.

Guess you should measure them 1st.


That's probably more accurate as I think I had to have the 1 3/4 flared a bit. I think auto supplies have adapters that might fit.


Tom

A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.


Return to “GL1000 Information & Questions”




Who is online

Users browsing this forum: No registered users and 1 guest