New member here, I recently acquired a 76' RD400 and the stock pipes are in pretty poor shape so I am needing some form of replacement. The bike will hopefully be restored as a very very mild restomod so I was thinking chambers. Based on what I have read here Spec II's are pretty well thought of. Are SPEC II chambers still available? if so where? Thanks to everyone here who takes time to post on the site I really appreciate the wealth of knowledge shared here.
Thanks
Jeff in Texas
as far as i know yes. Gary is an odd bird, try giving him a call? hes super old school.
Tel. : (818) 837-1313
If the number Mark posted doesn't work try this one.
747-257-5129
Thank yall for pointing me in the right direction, If the SpecIIs fall through are the motto carreras being made by someone else now? or any other suggestions? the JL's are a $$$ and DG's are my last resort as other have said they are just not worth the current price.
thanks again
jeff
Moto Carrera pipes are no longer available.
Spec-II is a great performance pipe. In addition to JL, there's also Wicked Performance https://www.wickedatv.com/
I'd stay away from DG, they don't do much except drop weight.
Quote from: Jspooner on December 28, 2024, 11:47:32 AMIf the number Mark posted doesn't work try this one.
747-257-5129
Pretty sure that's Gary's latest number. It was changed a few years ago from the 1313 one
i stand corrected. it's been a long time since i spoke w gary.
Quote from: So-Tex on December 29, 2024, 03:12:40 PMThank yall for pointing me in the right direction, If the SpecIIs fall through are the motto carreras being made by someone else now? or any other suggestions? the JL's are a $$$ and DG's are my last resort as other have said they are just not worth the current price.
thanks again
jeff
There's some Moto Carreras on eBay right now. 1500.00
Quote from: Jspooner on January 01, 2025, 01:42:44 PMThere's some Moto Carreras on eBay right now. 1500.00
yes.. yes there is... :dawg:
:clownshoes:
Wow...NOS and free shipping? 1500 is still pretty steep.
Jemco
https://www.facebook.com/story.php?story_fbid=951046716819371&id=100057421540274
Build to order.
Quite a few places in Japan making pipes still also.
Quote from: m in sc on January 01, 2025, 02:11:55 PMQuote from: Jspooner on January 01, 2025, 01:42:44 PMThere's some Moto Carreras on eBay right now. 1500.00
yes.. yes there is... :dawg:
:clownshoes:
Quote from: 85RZwade on January 01, 2025, 08:32:05 PMWow...NOS and free shipping? 1500 is still pretty steep.
I received an offer from the seller for $500 off :toot:
Quote from: busa1300 on January 02, 2025, 08:20:10 AMJemco
https://www.facebook.com/story.php?story_fbid=951046716819371&id=100057421540274
Build to order.
Quite a few places in Japan making pipes still also.
Didn't know Jemco was still making pipes following Jon Easton's retirement. Good to know :thumbs:
Jemco built the chambers for my RD. I did however take the bike to them to build as I wanted a GP exit and it also has a different swingarm. You would need to call and ask if they need the bike to build the pipes. I was satisfied with the price and workmanship.
Thanks again to everyone who posted numbers for Gary. I got in touch with him and got on the list....he is still in the process of moving but hopes to be up and running before too long. I made an offer on the NOS Moto Carreras on Ebay but he had already sold them locally and had not taken them down. I have looked at the Wicked pipes and may go that way while I wait, any thoughts out there on them or how they compare to SpecII.....thanks
j
I have a pair of Wicked pipes on my 400, definitely better than the DGs that were on it before with good power all around, also like the look of them but its a preference. They have nice little billet silencers and headers. Haven't tried out Spec IIs but I'm sure they are worth the wait.
(https://share.turlxthehuman.com/u/9qa4UX.jpg)(https://share.turlxthehuman.com/u/CRXYju.jpeg)
If I was buying pipes for an RD, I'd be looking at the K2tec Type2 from Webike.
USD is still really strong against the JPY, so they are a pretty good deal at the moment and usually arrive in less than two weeks.
Jim,
id try a set IF they made them for a 350. I mean, 400 chambers work ok on a 350 but still.
I have a set for the TZR, the build quality is really, really good.
Quote from: m in sc on January 04, 2025, 12:50:27 PMJim,
id try a set IF they made them for a 350. I mean, 400 chambers work ok on a 350 but still.
I have a set for the TZR, the build quality is really, really good.
Yeah, I think the OP is looking for 400 pipes. Yes, build quality is great, but I don't think the T1 with the constant radius headpipes are all that performance oriented. For my KH400 they were the only thing available and I had no complaints about'em.
Quote from: m in sc on January 04, 2025, 12:50:27 PMJim,
id try a set IF they made them for a 350. I mean, 400 chambers work ok on a 350 but still.
I have a set for the TZR, the build quality is really, really good.
Which "brand" are you referring to that you would try, that you have for the TZR that are really good build quality
thanks
j
Quote from: So-Tex on January 04, 2025, 08:34:51 PMQuote from: m in sc on January 04, 2025, 12:50:27 PMJim,
id try a set IF they made them for a 350. I mean, 400 chambers work ok on a 350 but still.
I have a set for the TZR, the build quality is really, really good.
Which "brand" are you referring to that you would try, that you have for the TZR that are really good build quality
thanks
j
Mark has mild steel K2tec T1 pipes on his 1KT/2MA TZR. They are very well made, inexpensive, and available off the shelf with quick shipping from Japan here: https://japan.webike.net/products/21574228.html
For 2x the $$$ the T2 are available as well. Probably make a bit more power. K2tec is very well regarded in the Japanese tuning mags, but no dyno charts are available, so the performance really is unknown.
https://japan.webike.net/products/21574205.html
Similarly, they are also available for the aircooled '76+ RD250/400, RZ350(LC), and RZ350R(RZ), TZR 3MA/3XV and Kawasaki triples in multiple versions including crossover and GP exit.
Whichever version you choose, they are well worth the $$$ and way better than DG's.
(https://global-fs.webike-cdn.net/catalogue/images/127183/25f68f58dc613c9ec3b2dfc7019d3260_TM.jpg)
this really good info jim. Thanks for providing :thumbs:
Quote from: RDnuTZ on January 05, 2025, 01:34:50 PMthis really good info jim. Thanks for providing :thumbs:
But wait, there's more!
K2tec website: https://k2-tec.com/
K2tec full range of products: https://k2tec.cart.fc2.com/
Good place to see what's available, but prices are better from Webike.
yup. about 700 usd for the better set for the TZR, which puts me into martins pipe range.
I'll be honest, if they made a set for an aircooled 350 id buy a set. I still would think the specII pipes would probably make more power, i have zero complaints on the set of specIIs on the lightweight.
the DGs are a good set of $350-400 dollar pipes, maybe, for the price point, but they sure dont make any decent power.
On the K2tec pipe description (https://www.moto-works.jp/k2tec/rd400.html) this caught my eye:
Carburetor jetting is not needed for street use.
For use in racetrack, where prolonged high rev situation is necessary, increasing main jet setting is recommended.
Seems a little odd that a "performance pipe" would not require a jetting change.
I do like these though:
mf-004.jpg
the tzr ones didnt need rejetting either. TBH, they didn't change much power wise, at all, so went back to the stock pipes on it.
Thanks again to everyone for taking the the time respond.
j
Gary's number is 747-257-5129 as Jspooner wrote.
He's still making pipes, 73 years old it takes him awhile (months). If you want pipes fast, you might want to check with others.
Gary's work is excellent.