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Author Topic: Where'd all the stock 4 into 4 HM300's & 341's go ?  (Read 1842 times)

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Offline greenjeans

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Where'd all the stock 4 into 4 HM300's & 341's go ?
« on: January 13, 2013, 10:21:51 am »
Can't find any new sets of HM300s or 341s anywhere except for Yamiya....

Anybody know of anybody with a set left ?     Even a really nice used set would do. 
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Offline harisuluv

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #1 on: January 13, 2013, 10:30:28 am »
Hard to find now after being discontinued. 
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Offline Stev-o

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #2 on: January 13, 2013, 10:47:34 am »
and all the old ones are rusted and trash.  I'm betting by next year someone will be producing some reasonably ($600?) priced repops.
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Offline K3Owner

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #3 on: January 13, 2013, 11:09:15 am »
I have a set of HM341's sitting in my basement. I removed them for a gent whose '73 (
I recall) 750 I made rideable and, although I tried to inform him that they were in "OK" condition, he demanded the internet low $$ replacement that only took a ball peen hammer to get to fit properly around the stand.

I cleaned one up and it's actually quite beautiful. I can't speak for the others as they're still quite greasy. I think I'll take the afternoon to clean them up instead of working on that old KZ in the basement. If they end-up tolerable, I'll let y'all know.

I like my Hondas original as well...
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Offline dhall57

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #4 on: January 13, 2013, 11:11:47 am »
Quote from: greenjeans on January 13, 2013, 10:21:51 am
Can't find any new sets of HM300s or 341s anywhere except for Yamiya....

Anybody know of anybody with a set left ?     Even a really nice used set would do.
I feel your pain GJ. Been looking for a decent Left #2 inner 341 pipe for about a year now for my K6. Still searching.

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Offline greenjeans

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #5 on: January 13, 2013, 12:23:20 pm »
Quote from: K3Owner on January 13, 2013, 11:09:15 am
I have a set of HM341's sitting in my basement. I removed them for a gent whose '73 (
I recall) 750 I made rideable and, although I tried to inform him that they were in "OK" condition, he demanded the internet low $$ replacement that only took a ball peen hammer to get to fit properly around the stand.

I cleaned one up and it's actually quite beautiful. I can't speak for the others as they're still quite greasy. I think I'll take the afternoon to clean them up instead of working on that old KZ in the basement. If they end-up tolerable, I'll let y'all know.

I like my Hondas original as well...

I'll cross my fingers...     Just can't bring myself to spend 2k on pipes just yet
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Offline K3Owner

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #6 on: January 13, 2013, 01:32:05 pm »
And so, three of the four pipes are serviceable. The left inner has a hole at the muffler/pipe seam. I didn't bother to clean it. The right inner is rusty on the engine side of the pipe just below the head - at least with polish. Still operational. The outers look nice, cosmetic cover and all. Maybe no better than any others out there?

Texas? I just don't ship these things - really don't know how so sorry to be a tease. Someone can always come to NW Georgia and grab 'em. Y'all can PM me and I can take pics. I don't know what they're worth. Make a reasonable offer if you're interested.
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Offline Bowswell

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #7 on: January 13, 2013, 03:43:46 pm »
http://davidsilverspares.com/CB750K4-FOUR-1974-USA/part_188992/

it,s was 837$ last month...now 965$ hurry!
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Offline dhall57

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #8 on: January 13, 2013, 05:08:00 pm »
Quote from: K3Owner on January 13, 2013, 01:32:05 pm
And so, three of the four pipes are serviceable. The left inner has a hole at the muffler/pipe seam. I didn't bother to clean it. The right inner is rusty on the engine side of the pipe just below the head - at least with polish. Still operational. The outers look nice, cosmetic cover and all. Maybe no better than any others out there?

Texas? I just don't ship these things - really don't know how so sorry to be a tease. Someone can always come to NW Georgia and grab 'em. Y'all can PM me and I can take pics. I don't know what they're worth. Make a reasonable offer if you're interested.
That's what I've been running into for the last year K3. The left inner pipe is always the worst of the bunch for some reason :( And of course that's the one I need
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Offline nccb

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #9 on: January 13, 2013, 05:09:52 pm »
I wonder if they are worse from all the chain splatter and rub and the stands hit them.
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Offline Stev-o

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #10 on: January 13, 2013, 06:52:27 pm »
Quote from: nccb on January 13, 2013, 05:09:52 pm
I wonder if they are worse from all the chain splatter and rub and the stands hit them.

Some parts are actually "preserved" by lube and oil leaks.  Notice this recently on my K5 project bike, need to find/fix that leak.
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Offline 736cc

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #11 on: January 13, 2013, 07:44:22 pm »


Ebay always has them 4 sale. I've been thru so many pipes, maybe 300 pipes give or take....half were good, half were rotten. This is an old photo. Now I only have 1 set and its on the bike.
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Offline Stev-o

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #12 on: January 13, 2013, 07:59:06 pm »
eBay has a NOS #4 right now for $450.  Didnt bother to post link here since that is a crazy price.
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Offline jerry h

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #13 on: January 13, 2013, 10:05:19 pm »
Quote
Been looking for a decent Left #2 inner 341 pipe for about a year now for my K6. Still searching.

Hey dhall57 -   I'm in the same boat..... I have 1,3 and 4,   but missing #2! 

I'll keep you in mind if I somehow locate 2 #2's ;D
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Offline 754

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #14 on: January 13, 2013, 10:38:47 pm »
I took two sets of 341,s to the dump one day,only one was dented....at the time I thought it would take at least 10yrs till they would be worth money.... Now 10 yrs has gone by about 3 times..
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Offline Lars

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #15 on: January 13, 2013, 11:26:21 pm »
The production molds are worned out, both for the CB 750 and the CB 500/550. They will be reproduced soon, I am sure, and then the price will drop to normal again ;)
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Offline greenjeans

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #16 on: January 14, 2013, 08:32:39 am »
Quote from: bowswell on January 13, 2013, 03:43:46 pm
http://davidsilverspares.com/CB750K4-FOUR-1974-USA/part_188992/

it,s was 837$ last month...now 965$ hurry!

Out of stock - a few months ago they had several sets - 2 choices:  Honda or the replacements in the link.

I have yet to see the "fake" Honda pipes in person, but I'm about to give it a try - as soon as they are back in stock.

I really hate buying 1 pipe at a time from ebay - the photos and descriptions are usually better than reality.
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Offline bender01

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #17 on: January 14, 2013, 08:00:06 pm »
I hope they come back. I saved my pennies and heard about all the dented problems and held off. Now theyre gone.
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So, the strategy is to lie to people you are asking for help?

I think I'll be busy going for a ride.

Good luck!
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Offline dhall57

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Re: Where'd all the stock 4 into 4 HM300's & 341's go ?
« Reply #18 on: January 15, 2013, 02:22:18 am »
I know on his last 750 project forum member Johnie said he had a hard time getting a good set of new 341's from Honda. He said he returned set after set before finally getting a decent set. Bad chrome was the problem I think.
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1974 CB750K4
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