Author Topic: CB750K5 Muffler Question (Read 4378 times)

Steverinomeister · « **on:** February 02, 2014, 09:49:11 PM »

Greetings
I have a good old pretty much all original bike with 7000 miles on it. The pipes/mufflers look new because the previous owner had them replaced ten years or so ago at his local Honda shop. They are marked HMCB750 SR HM341
Are these genuine NOS, or just good reproduction?
Thank You
Steve

HondaMan · « **Reply #1 on:** February 02, 2014, 10:10:30 PM »

Quote from: Steverinomeister on February 02, 2014, 09:49:11 PM

Greetings from Oregon
I have a good old pretty much all original bike with 7000 miles on it. The pipes/mufflers look new because the previous owner had them replaced ten years or so ago at his local Honda shop. They are marked HMCB750 SR HM341
Are these genuine NOS, or just good reproduction?
Thank You
Steve

AFAIK, the repro versions did not show up until 2008. So, those are likely Honda pipes!

Has anyone else here seen repros (or counterfeit) HM341 pipes before 2008?

Johnie · « **Reply #2 on:** February 03, 2014, 08:13:56 AM »

Welcome to the forum Steve...post up some pics and history of the bike when you can. We really like pics here.

DH · « **Reply #3 on:** February 03, 2014, 06:56:50 PM »

I'm no expert, but look at the end of each muffler on the inner wall
or thereabouts, for a stamped message concerning noise specifications. If it's there, they're nick named "paragraph pipes",
and they should be Genuine Honda replacements, I was told.
SR=superior right IR=inferior right SL=superior left IL=Inferior right. The 340 number is the model code, for the 750K2-K6, that the part fits. There could of course, be exceptions. I noticed on mine anyway, that the rear diffusers in the ends of each muffler, are BOLTED
in and the bolts are tacked/peened.

Steverinomeister · « **Reply #4 on:** February 04, 2014, 09:34:30 AM »

Thank You! Here are a couple pics of my 750.

Johnie · « **Reply #5 on:** February 04, 2014, 09:38:33 AM »

Very nice Steve. You the original owner or just purchased? Give a the down low on the history. She looks like a great original runner. Paint looks decent too. Is she ready to ride or are you working on it?

Hunter 1 · « **Reply #6 on:** February 04, 2014, 09:41:37 AM »

Very nice K5, but I`m partial since I have one the same year and color.

Yours looks to be in great shape.

DH · « **Reply #7 on:** February 04, 2014, 10:38:30 AM »

Quote from: Steverinomeister on February 04, 2014, 09:34:30 AM

Thank You! Here are a couple pics of my 750.

Yes, very nice. Flake apricot red. Wish I still had mine that was that color, but it became part of a trade deal for a station wagon. Had to buy this one later tho

......Is that a CBX I see in the background?
Why yes it is..

Johnie · « **Reply #8 on:** February 04, 2014, 12:20:26 PM »

DH...good eyes there...I missed the 6 chrome smackers back there. Would not mind seeing a pic of that too. I think Steve has himself the same syndrome as the rest of us ... the more than one syndrome.

DH · « **Reply #9 on:** February 04, 2014, 02:10:42 PM »

Quote from: Johnie on February 04, 2014, 12:20:26 PM

I think Steve has himself the same syndrome as the rest of us ... the more than one syndrome.

I'd go as far as to say that too . It gets in your blood, and never goes away.

Johnie · « **Reply #10 on:** February 04, 2014, 05:40:25 PM »

DH...a 70 Judge in your avatar? I had a 69 with the fold down headlights...yours looks fantastic.

Stev-o · « **Reply #11 on:** February 04, 2014, 05:56:11 PM »

Welcome steverino. My dad called me that too.

DH · « **Reply #12 on:** February 04, 2014, 08:19:21 PM »

Quote from: Johnie on February 04, 2014, 05:40:25 PM

DH...a 70 Judge in your avatar? I had a 69 with the fold down headlights...yours looks fantastic.

I absolutely agree john, but that judge .in my avatar aint mine.
I always wanted one, but couldn't afford it. Had to settle for Grand Prix(s)
of the '71/2 era. I love REAL PONTIACS. I'd bet you'd want yours back

.....sorry for the slight hijack guys.

Steverinomeister · « **Reply #13 on:** February 05, 2014, 10:53:12 PM »

Thanks Guys for the kind words about my bikes. I mainly restore CA95's and CB160's. I buy cast off CB160 parts from the café racer guys and restore them back to stock. My current CB160 project is a Black and Silver one and I have an all white one up next after that. There is a shop just down the road that does industrial coatings and they give me a good deal on sandblasting and powder coating so that makes things real easy for me.
I've only had the big bikes since I retired last fall. I wanted the 750 back in high school but Pop nixed that idea real quick. He didn't think I needed anything faster than my two year old SL100. I am the second owner. I got the original paperwork with it including the sales contract. I've replaced the original tires and tubes, the brake caliper, and the hideous ape hangers the original owner installed on it back when it was pretty new. It runs and rides great and I can't wait for some better weather. Mine is the twin to DH's, thanks for the pic.
The CBX is a new old stock bike. When I bought it, it hadn't been started since it left the factory. After pre lubing and a thorough going over I fired her up for the first time the other day and to me it is a pretty impressive beast. I'll post a better picture of it.
S

Pecantree · « **Reply #14 on:** February 06, 2014, 01:21:18 PM »

Quote from: Steverinomeister on February 05, 2014, 10:53:12 PM

The CBX is a new old stock bike. When I bought it, it hadn't been started since it left the factory. After pre lubing and a thorough going over I fired her up for the first time the other day and to me it is a pretty impressive beast. I'll post a better picture of it.
S

Start a new thread or hijack this one.
You have to tell the story of NOS CBX

Steverinomeister · « **Reply #15 on:** February 06, 2014, 02:29:49 PM »

Here is a pic of the CBX. A friend of mine is celebrating the 50th anniversary this April of the Honda Dealership he founded. He and his staff are going to have a band and food and a show. I am going to ride the CBX there and it will be the first time it has ever been on the road and when I arrive it will have racked up it's first 9 or 10 miles.

Johnie · « **Reply #16 on:** February 06, 2014, 04:47:26 PM »

Wow...that is beautiful!!! Do you think it is fast???

LArzFroMArz · « **Reply #17 on:** February 06, 2014, 04:49:08 PM »

Dam Steve you didn't us that story in the other place. Awesome CBX story! I had to go the 750 route as well (Sam made me) but still love our 160 stuff~

Steverinomeister · « **Reply #18 on:** February 06, 2014, 06:31:08 PM »

My Friend Larz

I knew you had a nice collection of bikes. I didn't know you were into 750's too. I've not brought up the big bikes on our other forum because I don't want to disrespect our wonderfully humble CA95's. I've even felt a little cheesy talking too much about my CB160's over there.

DH · « **Reply #19 on:** February 06, 2014, 06:42:33 PM »

I have heard in the past about dealers having NOS bikes stored away for years in their original crates. Just never saw/believed it til now.
Quite the find sir.

Steverinomeister · « **Reply #20 on:** February 06, 2014, 10:35:58 PM »

Thank You DH
I was very lucky. I had been looking for quite a while for what I consider the two greatest motorcycles ever built. When I finally found my 750 I mentioned to the broker I was also looking for a nice low mile pro link CBX. Most folks don't even know what one is but this time lightning struck, he was not only familiar with the CBX, he knew about this one, and he thought there was a chance the owner might be ready to turn loose of it.
S

Steverinomeister · « **Reply #21 on:** February 07, 2014, 09:20:02 AM »

Thank you Stevo Johnie and Pecan Tree
From what I've read the pro links are not as fast as the 79/80 models which are more valuable but they can be a little squirrelly.

HondaMan · « **Reply #22 on:** February 14, 2014, 07:17:46 PM »

Quote from: Steverinomeister on February 06, 2014, 02:29:49 PM

Here is a pic of the CBX. A friend of mine is celebrating the 50th anniversary this April of the Honda Dealership he founded. He and his staff are going to have a band and food and a show. I am going to ride the CBX there and it will be the first time it has ever been on the road and when I arrive it will have racked up it's first 9 or 10 miles.

What a stunning find!

ekpent · « **Reply #23 on:** February 14, 2014, 08:32:26 PM »

Do you have a picture or did I miss it of the actual stamp numbers on the pipes and their location ?

Steverinomeister · « **Reply #24 on:** February 14, 2014, 08:38:02 PM »

I'll go take a pic.

ekpent · « **Reply #25 on:** February 14, 2014, 08:58:46 PM »

Thanks -- Just curious what the stamp looks like for reference. Just used to just seeing an HM341 or HM300 usually on a stocker pipe. Nice forum thread also .

Those old cbx bikes of that era do show up now and then because at the time Honda had a hard time selling them and they were given away to college folks for instruction machines. Is this an example by chance ?

Steverinomeister · « **Reply #26 on:** February 14, 2014, 09:31:25 PM »

Hi ekpent
Im still going to get a good pic tonight. This cbx stayed at its original dealer until a collector of exotic bikes bought it in 1986. I copied the original title showing 1.1mile before i turned it in to the dmv to get titled in my name. The odo now shows almost 1.2 miles now from me rolling it around my shop. I only paid about what a new cb1100 costs. Id like to have one of those too. I am grateful to the honda factory guys back then for having the foresight to shut off the fuel and run the carbs dry before crating it up. After thirty two years she fired right up and runs like a brand new bike.

Steverinomeister · « **Reply #27 on:** February 15, 2014, 12:25:56 AM »

Here is a pic of the upper right muffler number

HondaMan · « **Reply #28 on:** February 15, 2014, 08:16:15 PM »

Quote from: ekpent on February 14, 2014, 08:58:46 PM

Those old cbx bikes of that era do show up now and then because at the time Honda had a hard time selling them and they were given away to college folks for instruction machines. Is this an example by chance ?

I've always thought this was the saddest "fatality" of the USA 55 MPH speed limit law. Just when Honda came out with a mega-machine, you couldn't even ride it in high gear here, in Honda's largest big-bike market.

But today, they can stretch their legs!

Steverinomeister · « **Reply #29 on:** March 02, 2014, 10:26:13 PM »

Here is a link to the CBX being fired up.
New Old Stock 1982 Honda CBX First Start Up since new.

Johnie · « **Reply #30 on:** March 03, 2014, 09:15:13 AM »

That is a sweet sound there man!!! Nice..........

Old Scrambler · « **Reply #31 on:** March 03, 2014, 10:34:45 AM »

It looks to me that the stamp on your pipes indicates reproduction. I don't know the whole story but repro-pipes may have been available about 10-years ago. My friend in Minnesota has two sets of HM341s that he bought in 2006 from the HONDA dealer in Thunder Bay, Ontario, CA.

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Author Topic: CB750K5 Muffler Question (Read 4378 times)

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