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What's that ringing noise?

Started by GhostMerc, May 03, 2021, 07:43:59 AM

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GhostMerc

I finally got the bike out into the driveway to start it up and possibly take it for a quick ride to the gas station.  As I was doing my walk around I heard an odd ringing noise and I couldn't figure out where it was coming from.  Then I saw one header pipe vibrating and found the issue underneath the bike.

My uncle lives close by, so I plan on riding it to his place so he can throw on a few spot welds.  Then I can take the whole exhaust off the bike for a more thorough fix.

1986 FJ1200
2015 FJ-09

Millietant

Out of curiosity, what exhaust is it ??
Dean

'89 FJ 1200 3CV - owned from new.
'89 FJ 1200 3CV - no engine, tank, seat....parts bike for the future.
'88 FJ 1200 3CV - complete runner 2024 resto project
'88 FJ 1200 3CV - became a race bike, no longer with us.
'86 FJ 1200 1TX - sold to my boss to finance the '89 3CV I still own.

fj1289

Our FJs are unfortunately getting to the point where some of the aftermarket parts are already at end of their life and are much harder to replace now!

GhostMerc

Quote from: Millietant on May 03, 2021, 08:32:21 AM
Out of curiosity, what exhaust is it ??

Full Supertrapp

I think I've had it on the bike for at least 10 years
1986 FJ1200
2015 FJ-09

fj1289

Quote from: GhostMerc on May 03, 2021, 09:10:46 AM
Quote from: Millietant on May 03, 2021, 08:32:21 AM
Out of curiosity, what exhaust is it ??

Full Supertrapp

I think I've had it on the bike for at least 10 years

Can you post pics of the full exhaust?  Is this the plain steel system?  Usually see the stainless steel systems

Millietant

Quote from: fj1289 on May 03, 2021, 09:28:26 AM
Quote from: GhostMerc on May 03, 2021, 09:10:46 AM
Quote from: Millietant on May 03, 2021, 08:32:21 AM
Out of curiosity, what exhaust is it ??

Full Supertrapp

I think I've had it on the bike for at least 10 years

Can you post pics of the full exhaust?  Is this the plain steel system?  Usually see the stainless steel systems

Both my V & H and my Kerker systems rusted very quickly in the UK weather and roads - I was forever removing, de-rusting and repainting them. Presumably mild steel construction.
Dean

'89 FJ 1200 3CV - owned from new.
'89 FJ 1200 3CV - no engine, tank, seat....parts bike for the future.
'88 FJ 1200 3CV - complete runner 2024 resto project
'88 FJ 1200 3CV - became a race bike, no longer with us.
'86 FJ 1200 1TX - sold to my boss to finance the '89 3CV I still own.

fj1289

Reason I ask is I have a mild steel super trap header for the FJ - but never had the correct mid pipe or muffler.  I bought one off eBay that looked about right.  I added a short extension between the header and mid pipe and it fit perfectly - even matched the angle of the side plate/rear foot rest bracket well.   I'm curious what the intended parts look like!

Pat Conlon

Quote from: fj1289 on May 03, 2021, 05:58:50 PM
....even matched the angle of the side plate/rear foot rest bracket well.   I'm curious what the intended parts look like!

That's what I like about the Kerker system. The mid pipe tucks in nicely below the side bracket...it's unfortunate that the muffler can breaks off....

Save your primary head pipes, upgrade your 4 into 1 merge collector.



Burns merge collectors are the best.

https://burnsstainless.com/products/4-into-1-base-collectors






1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

GhostMerc

Quote from: fj1289 on May 03, 2021, 05:58:50 PM
Reason I ask is I have a mild steel super trap header for the FJ - but never had the correct mid pipe or muffler.  I bought one off eBay that looked about right.  I added a short extension between the header and mid pipe and it fit perfectly - even matched the angle of the side plate/rear foot rest bracket well.   I'm curious what the intended parts look like!

I'll try to take good picture sometime today and post it
1986 FJ1200
2015 FJ-09

T Legg

This is a picture of a super trap
T Legg

GhostMerc

Here's the full exhaust.  Since two of the headers are still attached, I think I can pull the whole thing off and try to repair it for the season.  After this year the whole bike is going to get torn down.




1986 FJ1200
2015 FJ-09

Pat Conlon

1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

GhostMerc

Quote from: Pat Conlon on May 04, 2021, 10:31:10 AM
Is your muffler supported?

Yep, it uses the bolt right in front of the passenger foot peg.  I think that's the same location as the stock muffler, but it's been so long since I've seen a stock bike.
1986 FJ1200
2015 FJ-09

fj1289

Holy cow!  That IS a stainless steel supertrapp! 

Pat Conlon

Quote from: fj1289 on May 04, 2021, 01:46:23 PM
Holy cow!  That IS a stainless steel supertrapp! 

Yep, that is worth saving....
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3