Author Topic: Yoshimura Exhaust (Read 81803 times)

wannabridin · « **Reply #200 on:** September 05, 2009, 01:23:43 AM »

haha! well I wasn't aware of that, so thanks for chiming in! well i guess he's doing it with someone who learned from Pops, or maybe someone else who makes quality exhaust. hopefully i'll get the shipment in asap, and i can share pictures!!

seaweb11 · « **Reply #201 on:** September 05, 2009, 01:27:20 AM »

Quote from: Terry in Australia on September 05, 2009, 01:14:49 AM

"Pops" was the nickname for Hideo Yoshimura, the famous motorcycle tuner who founded the Yoshimura brand. He did move to CA back in 1971, but died in 1995, so if he's still making pipes for Carpy, he's doing it by telekinesis, ha ha!

Good to see ya in good spirits as always

SWEETPEAUK · « **Reply #202 on:** September 05, 2009, 09:24:02 AM »

I had one on my 750 in the 80's. It came with one when I bought it, and I bought another after the silencer fell off 1 mile from home after returning from the 84 Assen GP. The ones sold in the UK were not welded up, so the downtubes clamped to the silencer. the silencer was also bent "s" by machine, and the centre stand was still usable, also the pipes bent around the centre of the engine for easy oil filter removal.
I sold it a couple of years ago to a guy in the state who was builting a classic racer for Daytona.

Link to some old scans
The pictures with the bodywork off is with a laser system fitted,

http://s195.photobucket.com/albums/z225/sweetpeauk/supercharged/?albumview=slideshow

wannabridin · « **Reply #203 on:** September 05, 2009, 11:32:55 AM »

Quote from: SWEETPEAUK on September 05, 2009, 09:24:02 AM

I had one on my 750 in the 80's. It came with one when I bought it, and I bought another after the silencer fell off 1 mile from home after returning from the 84 Assen GP. The ones sold in the UK were not welded up, so the downtubes clamped to the silencer. the silencer was also bent "s" by machine, and the centre stand was still usable, also the pipes bent around the centre of the engine for easy oil filter removal.
I sold it a couple of years ago to a guy in the state who was builting a classic racer for Daytona.

Link to some old scans
The pictures with the bodywork off is with a laser system fitted,

http://s195.photobucket.com/albums/z225/sweetpeauk/supercharged/?albumview=slideshow

that's a pretty sweet machine you had there! see, i don't really care about using my center stand as it's just dead weight, and it's really hard to pull the bike up with clubmans! either that, or i have the worst form ever... but i like to think i have some technique, as i've pulled plenty of big ass BMW K1200's with just good form!

PeWe · « **Reply #204 on:** September 07, 2009, 10:13:49 AM »

Quote from: wannabridin on September 02, 2009, 11:34:06 PM

i have one of carpy's exhausts on it's way. ordered last week when the price dropped. too bad i don't have a running motor to throw it on, sorry to tease!!! but i will post some pictures on here, more detailed ones than carpys website

Hi.

So this Yoshimura replica from carpy (c750cafe.com) is still possible to order?
Anybody here that has ordered and got it lately?

I have mailed (shop@cb750cafe.com) regarding shipment to Europe (Sweden), price and other small details about parts from the website. No respond despite 2 mails 2 weeks ago. Maybe too busy...
I prefer to check that everything's Ok and available before ordering and transfer money via Paypal.

- Maybe the 4-2-1 from Cycle Exchange is something to consider?

The Yoshi is also available from Japan as mentioned earlier in this thread, but the model from Carpy is tougher and my first choice of exhaust to my old friend since over 30 years.

I have got my CB 750 K6-77 back to my garage from storage in a friends barn. Last year I used it was 1990 ( bought it 1979) and time to restore it (again). Action Fours 836 cc (replaced RC 836cc when one got blown), ported head with F2 inlet valves, Action Fours SS-1 Cam, lightened alternator, Mikuni Smoothbores 29.

My plan is to replace the camshaft with something hotter like this from Cycle X: "370 lift and .282 duration" OR RC 315 replica from Dynoman, Cycle X Super-Rods, Heavy duty cylinder Stud Set, new valves with springs, retainers which probably are tired since 19 years of no use. Change position once a year by carefully kick the engine one revolution by hand.

And very important, a nice 4-1exhaust. I gave up my search for Yoshi 15 years ago. There are not many exhausts good enough for a modified CB 750 engine.

voxonda · « **Reply #205 on:** September 07, 2009, 10:53:24 AM »

I also contacted Steve, but no reaction so far.

Rob

PeWe · « **Reply #206 on:** September 07, 2009, 11:05:22 AM »

Ok, let's hope he responds to us so we can order

Retro Rocket · « **Reply #207 on:** September 07, 2009, 03:13:35 PM »

I spoke to Steve a couple of weeks back and he said he had some mates form Aus coming over, he had to organize a couple of container loads of parts to be sent back to Aus {i'm trying to get a yoshi thrown in}, so maybe he is just busy....

Mick

wannabridin · « **Reply #208 on:** September 07, 2009, 08:05:37 PM »

looks like he's going to ship it this thursday, as he got backed up and he was getting them back from the powder coater wednesday. i'm SO stoked!!! but i just wish i had a running motor and bike to throw it on! i will keep y'all posted when I get them!

if i didn't buy carpy's, i would have for sure saved up all my pennies for a benjie 4-4, as it is my #1 choice, but carpy's is the economical choice!

voxonda · « **Reply #209 on:** September 08, 2009, 01:44:32 AM »

Quote from: retro rocket on September 07, 2009, 03:13:35 PM

I spoke to Steve a couple of weeks back and he said he had some mates form Aus coming over, he had to organize a couple of container loads of parts to be sent back to Aus {i'm trying to get a yoshi thrown in}, so maybe he is just busy....

Mick

Always good if people are busy in these times!

Retro Rocket · « **Reply #210 on:** September 08, 2009, 02:10:02 AM »

Quote from: voxonda on September 08, 2009, 01:44:32 AM

Quote from: retro rocket on September 07, 2009, 03:13:35 PM
I spoke to Steve a couple of weeks back and he said he had some mates form Aus coming over, he had to organize a couple of container loads of parts to be sent back to Aus {i'm trying to get a yoshi thrown in}, so maybe he is just busy....

Mick

Always good if people are busy in these times!

Absolutely...

Mick

johnyvilla · « **Reply #211 on:** September 08, 2009, 04:24:19 AM »

Can anyone attest to how loud Carpy's 4-1 is? I have heard some clips of real Yoshi's and they sound like track pipes.

oldfett · « **Reply #212 on:** September 08, 2009, 10:47:18 AM »

Quote from: johnyvilla on September 08, 2009, 04:24:19 AM

Can anyone attest to how loud Carpy's 4-1 is? I have heard some clips of real Yoshi's and they sound like track pipes.

When I emailed him a similar question he responded that it would sound similar to the exhaust he used on his Cobalt Special. Here's the video he made of that...

www.youtube.com/watch?v=cucIya-WTbc&feature=channel_page

wannabridin · « **Reply #213 on:** September 08, 2009, 12:36:43 PM »

Quote from: oldfett on September 08, 2009, 10:47:18 AM

Quote from: johnyvilla on September 08, 2009, 04:24:19 AM
Can anyone attest to how loud Carpy's 4-1 is? I have heard some clips of real Yoshi's and they sound like track pipes.

When I emailed him a similar question he responded that it would sound similar to the exhaust he used on his Cobalt Special. Here's the video he made of that...

www.youtube.com/watch?v=cucIya-WTbc&feature=channel_page

well you have to remember that his cobalt special is blown, using a magneto and has an 836 kit on it (or other big bore), therefore giving it a much better sound than a stock displacement with no forced induction... Either way, it'll sound good, nice bark at high rpms I bet, with the baffle in of course... It'll prolly sound tits without the baffle, but then you run the risk of burning up a valve!! Ahhhh, why can't we see any of that bail out money ourselves, then I could get my K back on the road and give yall sound clips!!! :-(

seaweb11 · « **Reply #214 on:** September 08, 2009, 07:04:07 PM »

My Yami Yoshi with the baffles removed on my 836 sounds WAY better than that does!

Johnny5 · « **Reply #215 on:** September 08, 2009, 07:35:05 PM »

Pfft, my Mac and homemade can sounds better than that Yoshi. Especially for the price.

wannabridin · « **Reply #216 on:** September 08, 2009, 07:51:43 PM »

my bad. i was thinking it was a different bike. no blower or magneto, but still an 836cc. apologies...

but if anything, remove the yoshi baffle, then cut it down some so you get more noise! i'm sure it sounds plenty mean w/o a baffle! hard for a 4-1 to sound bad like that, no matter the brand!

seaweb11 · « **Reply #217 on:** September 08, 2009, 11:04:38 PM »

I suppose it may be time for a quick vid of the Tracy......... now that the baffles are out ?
ooooooooooooooooh

Beans · « **Reply #218 on:** September 08, 2009, 11:43:38 PM »

Damn seeing all these video's makes me want to take one of the bike driving down the road. everyone I talked to said they love the way it sounds with the stock exhaust with no baffle.

seaweb11 · « **Reply #219 on:** September 09, 2009, 06:30:23 PM »

Yami with no baffles on a 836

http://www.flickr.com/photo_embed.gne?id=3905619764

Anyone know what I need to do with Fickr to embed videos?

wannabridin · « **Reply #220 on:** September 10, 2009, 01:38:27 PM »

hey guys,

here are the video links carpy just sent. my pipes are still at the coaters, but hopefully will be done today and ship out tomorrow!! lets keep the fingers crossed!!!

http://s2.photobucket.com/albums/y15/caferacer/?action=view&current=P1130821.flv

http://s2.photobucket.com/albums/y15/caferacer/?action=view&current=P1130786.flv

http://s2.photobucket.com/albums/y15/caferacer/?action=view&current=P1130780.flv

http://s2.photobucket.com/albums/y15/caferacer/?action=view&current=P1130778.flv

http://s2.photobucket.com/albums/y15/caferacer/?action=view&current=P1130781.flv

http://s2.photobucket.com/albums/y15/caferacer/?action=view&current=P1130782.flv

i wish i could listen to them, but of course, i'm at school with no headphones!

wannabridin · « **Reply #221 on:** September 10, 2009, 01:42:39 PM »

correct that. technology store had some for 2.99! omg i think i just got hard listening to it!!!

wannabridin · « **Reply #222 on:** September 10, 2009, 02:21:06 PM »

carpy has just informed me that the baffle is IN in those videos.

Beans · « **Reply #223 on:** September 11, 2009, 12:26:46 AM »

Man those 750's do look sexy. makes me want one more and more. maybe sell off all my 550 stuff except for the running bike of course.

Henrik Vik · « **Reply #224 on:** September 14, 2009, 09:41:36 AM »

Hi.
Has anybody received anything yet? If so, what is the quality like? Has anybody any idea how much it would be to ship these to Europe? I sent Carpy a mail wanting to get a set over to Norway, but haven't heard back yet. So if anybody got any news, please let us know...

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Author Topic: Yoshimura Exhaust (Read 81803 times)