Author Topic: Yoshimura Exhaust (Read 82014 times)

Terry in Australia · « **Reply #175 on:** April 19, 2009, 01:56:40 AM »

Quote from: moham on April 18, 2009, 05:47:35 AM

Based on the last two comments then, with the original Yosh being a thinner material, does that suggest that the Yamiya is the more faithful interpretation? Or are they just copies of different designs?

Does seem that lighter is better when trying to go fast.

The Yamiya replica is a copy of the first Yoshimura CB750 pipe, whereas Carpys pipe is a copy of the much nicer, later Yoshimura pipe. I prefer Carpy's, although Yamiya are selling plenty of their pipes too. Cheers, Terry.

Retro Rocket · « **Reply #176 on:** April 19, 2009, 02:01:01 AM »

Carpy's has the smooth bends in the section behind the collector and the Yamiya is a cut and shut....as far as i know No yoshi pipes were cut and shut, they were all bent tube.

Mick

Terry in Australia · « **Reply #177 on:** April 19, 2009, 02:59:33 AM »

The Yamiya's pipe is an authentic copy of the very early Yoshi pipe Mick, the smoother bends happened later. Cheers, Terry.

Retro Rocket · « **Reply #178 on:** April 19, 2009, 03:03:17 AM »

Thanks Terry, i have never seen the ones you speak of, i thought the earlier ones were like these.

Mick

6adan · « **Reply #179 on:** April 19, 2009, 12:43:26 PM »

Carpy, just to let you know you are the one who got to wanting to build a cafe. I have a 70 JDM that I bought new that I plan to restor and picked up a 76 yesterday that is going to be built as a cafe,so it is all your fault,but I like it.I am 61 now and still love riding.
Danne

fuzzybutt · « **Reply #180 on:** April 19, 2009, 01:15:57 PM »

the carpy pipes are also ceramic coated stainless. i lust for one of those pipes.

Speedngheadphone · « **Reply #181 on:** April 19, 2009, 04:16:31 PM »

Quote from: 736cc on January 26, 2008, 02:54:05 PM

A hand-bent race pipe is about as hardcore as you can get on a motorcycle. Its like the difference comparing Valentino Rossi's M1 exhaust and a stock R1 pipe. The hand-made welds and smooth-radius bends are all there to see and appreciate for what it is. Its nasty in a good way.

As for me, I'm interested in one of the early paper-thin lightweight exhausts, 736's bike just sounds terrifying.

Whats the word on replicates of that exhaust?

In the meantime, I'm going to search for some video's of carpy's yosh exhaust vs the yamiya's.

Terry in Australia · « **Reply #182 on:** April 20, 2009, 08:30:25 PM »

The Yamiya pipe is very similar to 736's pipe.

JAG · « **Reply #183 on:** August 16, 2009, 06:12:03 PM »

wow this thread is still going!!!

Hey are there any sound bites of this exhaust carpy is making, or and yoshi for that matter?

736cc · « **Reply #184 on:** August 17, 2009, 04:55:45 AM »

..bike is available 4 sale

Ogri · « **Reply #185 on:** September 02, 2009, 03:43:36 PM »

Anybody got a pic of the baffle - either Yamiya, genuine or genuine copy ?

wannabridin · « **Reply #186 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

Beans · « **Reply #187 on:** September 03, 2009, 12:04:08 AM »

I wish I would have one of carpy's pipes if he made them for the 550. But looks like I will just make my own.

JAG · « **Reply #188 on:** September 03, 2009, 05:41:10 PM »

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

Yes I would love to see it/hear it when you get it together!!

I'm thinking of getting one myself. What is it now $400??

wannabridin · « **Reply #189 on:** September 03, 2009, 10:12:17 PM »

ya, when i get pictures, i can post them of the piece itself, but in regards to mounting and hearing it, it'll be awhile $:-\$

but ya, it's $399 now with $65 shipping. grand total was $464.99, ain't too bad, especially considering the piece looks a lot nicer and higher quality than the yamiya piece!! just waiting on carpy now...

JAG · « **Reply #190 on:** September 04, 2009, 10:06:33 AM »

Quote from: wannabridin on September 03, 2009, 10:12:17 PM

just waiting on carpy now...

Does he make each one per order?? Meaning I don't suppose he has a surplus pf them just lying in his garage?

Also he said with his, there is no need of a rear bracket to hold it up, is this correct?

Beans · « **Reply #191 on:** September 04, 2009, 12:45:26 PM »

How hard is it to hand bend some tubing to make a pipe? My dad ownes an exhuast shop and has a exhaust bender but hand bent pips I think look cooler. Makes it look like you built it out of ur garage. If its not to hard would be cool to make one and then posibly make one in my garage instead of driving an hour to my dads shop.

Don R · « **Reply #192 on:** September 04, 2009, 06:47:50 PM »

Very hard.

Beans · « **Reply #193 on:** September 04, 2009, 07:38:42 PM »

Quote from: Don R on September 04, 2009, 06:47:50 PM

Very hard.

ok that's no help. I ment to say what technique do you use to bend the tubing? is it like a torch and then start bending it?

NickC · « **Reply #194 on:** September 04, 2009, 08:11:27 PM »

Best way would be a tubing bender(not pipe bender).

robe0531 · « **Reply #195 on:** September 04, 2009, 08:18:25 PM »

carpy does not make his pipes he has a guy that builds them for him

wannabridin · « **Reply #196 on:** September 04, 2009, 08:46:34 PM »

carpy says that Pops from the original Yoshimura is building these for him as he lives in CA now.

he gets them made in batches of like 15-20 at a time, although i don't know that at all, i'm just making assumptions from his websites pictures.

he says you don't need a rear bracket, but i'd rather not have my cylinder head supporting the weight. the whole pipe starts to act as a long moment arm, and bumps and vibrations from the road will amplify themselves a LOT on the mounting bolts and flanges, and i wouldn't want to do anything like that... i don't like this at all, but being an engineer doesn't help any ignorance in this matter at all. i will probably either weld a bracket (not the cleanest) or get some psuedo-schnazzy bracket that wraps around it.

and bending a pipe like that, NOT easy, otherwise the market would be flooded by them. especially with the tight radius curves under the engine and the constant diameter increase of the end. they are fully mandrel bent from what i can see, with no kinking, which is hard to do with anything but the best mandrel benders. $400 is a damn good deal for a 4-1 period. i'd suggest anyone wanting one should support carpy and these great pipes.

Retro Rocket · « **Reply #197 on:** September 04, 2009, 08:47:02 PM »

Quote from: robe0531 on September 04, 2009, 08:18:25 PM

carpy does not make his pipes he has a guy that builds them for him

Yep, he says that on his site and i'm sure he posted that here as well. I think they are made by a former Yoshi worker.

Oops, beaten by a whisker....

Mick

Beans · « **Reply #198 on:** September 04, 2009, 11:18:23 PM »

I would buy one but doesn't look like he makes them for the 550's

Terry in Australia · « **Reply #199 on:** September 05, 2009, 01:14:49 AM »

Quote from: wannabridin on September 04, 2009, 08:46:34 PM

carpy says that Pops from the original Yoshimura is building these for him as he lives in CA now.

"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!

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Author Topic: Yoshimura Exhaust (Read 82014 times)

fuzzybutt