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Discussion Starter · #1 ·
Good afternoon,

We are working on a 1,280 mile 1973 CL450 we purchased from
the Bob Logue Honda Museum, in PA.

I noticed that the lower muffler (L side 18410-347-670) has blistered
chrome on the underside near the tire from rust probably coming
through. You cannot see the blisters until you get down and look
under the pipe assembly.

Are replacement pipe/mufflers, perhaps NOS, available?

Any options you could suggest would be appreciated since this
is our first Honda 450 resto, we need your advice .... and the
rest of the bike is excellent.

Thank you for any help you can give us.

Rsmith
.
 

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Welcome to the forum Rsmith. As this is your first Honda resto, and assuming you will be doing more, it might be worth creating a new member intro. We love pictures here and if the bike was from a museum and in excellent shape -- all the more! CL350 and 450 pipes are very sought after but they do come up from time to time and JT's post about ebay with parts number is solid as well as sometimes coming up on the site here. Good luck with the project!
 

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Discussion Starter · #4 · (Edited)
Attached magazine cover picture

rothafella

Attached is a magazine cover picture of the 1973
Honda CL450 we were able to purchase from the
Bob Logue Honda Museum in Pennsylvania a few
years ago.

https://amf.foundation/index.php?page=bob-logue

780 miles when we picked it up from the museum
and a one owner bike.

rsmith
 

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Discussion Starter · #6 ·
Thanks

Thanks Rothafella.

I sent our muffler to JR Plating in Minnesota. We have
friends who they have repaired and re-plated rusted
mufflers for before.

JR Custom Plating :: From No Shine To Show Time

When it was received by JR they called us saying they
could repair then re-chrome our muffler.

BUT .... I am going to call Southern Honda per
your suggestion Monday morning .... just in case
they can source a NOS L muffler for our 1973 CL450.

We were extremely fortunate to hear that Bob Logue was
selling some museum bikes and their 700 mile, one owner, Honda 450
was available. Apparently, the museum staff occasionally rotate their exhibits
as other vintage Honda's become available.

Thanks again. rsmith
 

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Discussion Starter · #7 ·
Muffler not available but worth a try!

Rothafella -

We contacted Southern Honda this morning (Saturday 4/20) about the
1973 CL450 L muffler.

While their website showed they could get the muffler and even showed how
much the shipping would be ..... when I spoke with their rep on the phone
today ... he explained that their website needed to be "updated" and
that muffler hadn't been available for "years".

So, I have contacted and checked with sources from Narita, Japan, to
Europe, for a NOS L muffler for a CL450K5 without success.

Luckily, JR Plating in Minnesota, reported, after examing the part,
that they could repair the rusted area and re-chrome the part better than
Honda did 47 years ago. They could have easily said "Can't help you
with a rusted muffler!"


Thanks again Rothafella. It was certainly worth a try!!

Happy Easter - rsmith
 

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Discussion Starter · #8 ·
1973 Honda CL450's L Muffler repaired by JR Custom Plating better then new!!

After months of looking for a NOS L muffler for our 1973 CL450 .... from Narita, Japan
to London, England, on Ebay and including asking this forum's members for advice,
with no success, we decided to send the muffler to JR Custom Plating in Minnesota to
see if they could repair and re-plate our hole filled muffler?

John at JR thought they COULD repair it so we said "go ahead". They stripped the muffler
and found that it looked like Swiss Cheese on the bottom nearest the wheel. It was
really sad looking when it was naked.

JR moved ahead with the repair cutting out the rotted area, welding in clean steel,
copper plating the repaired muffler, buffing, buffing and buffing. Then they re-chromed
it to better than new condition. Its beautiful!

JR's Office Manager Mikayla kept us updated each step of the restoration
which was really appreciated by us.

A few weeks after we sent it to JR .... it came back and we reinstalled
it, with new bolts and NOS Honda exhaust gaskets, front and rear, on our CL450.

JR Custom Plating - Custom Chrome Plating Minnesota

Thank you JR Custom Plating for the excellent work you do on parts that
are no longer available!

Rsmith - Clarkston, Michigan
 

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Discussion Starter · #10 ·
Pictures

Here are some pictures of our 1973 CL 450 muffler repair and re-plating
from the JR Custom Plating Facebook page if your interested.

We used Brown's Plating for 20 years before Ronnie and his family
closed up on New Years Day a few years back. And JR is the
same quality AND will actually tackle a muffler like ours that was
very badly eaten through on the bottom.


https://www.facebook.com/JRChromePl...830322324878/2743822072325703/?type=3&theater
 

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Discussion Starter · #12 ·
Your right! We were very lucky.

We were really pleased that JR would even attempt to fix
the muffler because it was riddled with holes and actually
soft when you pressed on the bottom.

We sent just pictures of the muffler, before shipping it to JR,
to two other plater's and they passed on that kind of
repair. They probably knew what was under that crunchy,
soft, rust riddled, original chrome plating.

Once John at JR removed the old chrome, the problem was out in the
open as you can see in the pictures from their Facebook page.

They could have easily said it was "too far gone" and sent it
back to us. Instead they did a great job and it is better than new!

Rsmith - Clarkston, Michigan
 

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Discussion Starter · #13 · (Edited)
I hope this link works ....
JR Plating has posted multiple pictures of our muffler being
repaired by them - Perfect repair, ending our unsuccessful worldwide
search, from Japan to Europe, for a 1973 CL450 NOS muffler! Thanks JR!

https://www.facebook.com/media/set/...X8K2j3v.bps.a.2744121878962389&type=1&__xts__[0]=68.ARBKveMc9czW3hzUZvExqK0AnPa7pcl2aKYWW-IAldb77pXSoHcu0HGAl2xsq-rmW_LCPKRQKEUZfAHbebYFKTZn4jmXCpQgx9588F3Z2P0eSFRCGFXbvLwkPPddVlPkGWSNlDH8u23f1_a1H7gGD8Z4n9qPFh89knROpJZpkR3BI7ycTzD7mwsxKt2EK01KF0nY-QHRehruXzdhcXAHiHY25T5EYKwUhHzFSfHsua-720KvI41m-vJhlKWmKUaKN6qbTiP1ILBJutD0RsUbRdZDDftj6H2e_scPKcf1pgHFUxLCsJ7udRjFYJRFiLij5eiH2nucCoFo8c3_Rp9CwAqCQf3SnnJvxeV_a8BJhq3OLQBvIL_Lb9Q0HdV_LmKTz6UPXlVuPzs4auIdTysuQi0dRzvrgFIoCP9GuDZEHfuXebanuTPKz929O2Oqd6hcoXs7IU1BWxa_qN_1hTdlW3hEbexLTW7GWiXL77GP0Rbe8IL8fZWJgrWTxbtso03lMNjDPkVt41fTdXvZ8aSYCFYBhMW6Mt7kpUCT0PpKTA&__tn__=HH-R
 

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^^^link only works if you copy the entire URL (beyond the initial hyperlink section) and then log into FB

hyperlink section works now, must have been FB or the internet
 

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Discussion Starter · #15 ·
It was nice that JR Plating took on the job of rebuilding/chrome plating our muffler
that looked like swiss cheese when it was stripped by them.

As we mentioned, two other long time chroming companies gave thumbs down
to EVEN having us ship the muffler to them .... they wanted no part of it.

Happy Holidays!
 

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This was my attempt on a couple of my black CL450 mufflers posted years back. Split them open, replaced guts with tubing from a Bissel carpet cleaner handle and a hibachi bar-b-que cover. If I were to do it again, I would pack it with fiberglass with rabbit wire holding it in against the walls. I figure the glass will finally be blown out after having been battered with exhaust pulsations. The center photo had no missing parts so I just folded it back up and rewelded with the Harbor Freight wire flux welder. The one with the new internal parts needed them as half of them had blown out.
 

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