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Difference between stock XS-1 mufflers and repro
- Thread starter mototwin
- Start date
No matter what the difference is ...the NOS if Original I would expect to be very VERY expensive
and rare ... I could be wrong about the availability in the US ,,
But I would go for the stock ASAP ...keeping quiet about it
and rare ... I could be wrong about the availability in the US ,,
But I would go for the stock ASAP ...keeping quiet about it
OK got it ...
Perhaps there is a part number Marking somewhere on the NOS
Yeah, I’ve seen the old repops being sold as NOS trick before! Buyer beware!
I've used the Mike's re-pops.. and have no complaints. The header pipes Mike's provide are single wall.. not double as factory.. and as such the Mike's will turn blue. How much are the ... NOS.... I got NOS mufflers from David Spares for my Cb450P..... Yikers !
Cribby
XS650 Addict
The original mufflers have the Yamaha part number on them, the after market don't
I have to say that I've bought a good few sets from Heiden Tuning and they are great
Ant
I have to say that I've bought a good few sets from Heiden Tuning and they are great
Ant
Do your NOS mufflers have vent holes?
http://www.xs650.com/threads/1977-model-leaking-exhaust-gasses-from-drain-holes.37063/
http://www.xs650.com/threads/1977-model-leaking-exhaust-gasses-from-drain-holes.37063/
There are no vent holes on the ones I'm looking at, did all of the mufflers from 1970 on have these holes? The guy I'm talking to says he has had these squirreled away for years, he picked them up before the reproductions started being made. But other than your comment I can't find anything to verify if they are originals. Thanks for the info.
txxs
XS650 Addict
I think you can still buy one left side NOS muffler for about US$700. I don't think the right side NOS is available anywhere.
Be careful that you don't get ripped off by paying "NOS" prices for an aftermarket advertised as a NOS.
As mentioned above the NOS has the part number stamped near the rear end. I will take a photo maybe tomorrow.
Be careful that you don't get ripped off by paying "NOS" prices for an aftermarket advertised as a NOS.
As mentioned above the NOS has the part number stamped near the rear end. I will take a photo maybe tomorrow.
Thanks I would like to see those pictures.
My factory mufflers are off of my bike right now, I was looking all over for some sort of number or factory stamp, I couldn’t find any.
txxs
XS650 Addict
Hi Mototwin, Some photos:
256-14721 is the right side muffler
256-14711 is the left side muffler
The numbers are stamped on the top inner side near the tyre
I just checked mine.
NO factory markings or number stamps as well.
I faintly recall having some long-ago discussion here about differences between "as installed" and factory replacement body parts.
Back in the day, I and the parts guys would occasionally notice a difference between a factory (Honda) replacement part and an installed part, like tanks and mufflers. As though the replacement part came from a separate run, or simply incorporated some sort of revision. One example could be made by pointing out the area where a petcock is mounted. I sometimes wondered if it had anything to do with importation laws, complete/crated bikes subject to different rules compared to the parts supply streams.
Concerning the vent holes.
My mufflers do not have vent holes.
But, if I saw vent holes in new replacement mufflers, I'd probably suspect that the replacement mufflers had to comply with some modern ruling, making them as compliant aftermarket, probably not NOS...
Last edited:
Thanks for the pictures TXXS, That is definately the parts number for the right side muffler, the box and stamp on the muffler confirms that it is an original muffler. From TwoManyXS1Bs post I wonder if Yamaha shipped bikes with unstamped mufflers but supplied stamped replacement mufflers. We would have to know the history of his bike the chain of ownership back to the original purchase to really know for sure. I guess the question remains, how can you tell if the mufflers are original.
txxs
XS650 Addict
Another photo from an 100% original XS2. At first I couldn’t see the numbers but when I poured a bit of water and rubbed back a bit of gunk and
rust you can see it.
Speculating a bit.
Not sure if this applies But at manufacturing parts going in directly to assembly
There is not the strict need for parts being numbered.
Say you are going to assemble 100 bikes-- if then pipes for 80 are ordered without parts numbers going directly to assembly line
from the truck via Fork lift. Not that big risk for something being assembled wrong .aka Wrong parts on the Wrong bike.
But then you don't know the Customer behavior.
So you order 20 % ( Or something ) of the Pipes With parts Numbers putting these on the Shelf in the warehouse.
( These days I suppose it is more just in time Manufacturing with less storing )
So if then all of a sudden more Orders are splashing in ..Dealers in fex USA are demanding more bikes as of right now or better Yesterday
Then these parts are in the warehouse and then these needs parts numbers. For getting the right parts to the assembly line and putting the bikes together as well as replacement parts need them for repairs. .Someone must find it and ship it and the shop must quickly identify it via the parts .manual.
Saves time in the handling if numbers are on a known spot and clearly readable.
One could use a sticker but it is safer with the number stamped in. And some sheet metal processing is going on ...it might not be that complicated stamp it in then..
Not sure if this applies But at manufacturing parts going in directly to assembly
There is not the strict need for parts being numbered.
Say you are going to assemble 100 bikes-- if then pipes for 80 are ordered without parts numbers going directly to assembly line
from the truck via Fork lift. Not that big risk for something being assembled wrong .aka Wrong parts on the Wrong bike.
But then you don't know the Customer behavior.
So you order 20 % ( Or something ) of the Pipes With parts Numbers putting these on the Shelf in the warehouse.
( These days I suppose it is more just in time Manufacturing with less storing )
So if then all of a sudden more Orders are splashing in ..Dealers in fex USA are demanding more bikes as of right now or better Yesterday
Then these parts are in the warehouse and then these needs parts numbers. For getting the right parts to the assembly line and putting the bikes together as well as replacement parts need them for repairs. .Someone must find it and ship it and the shop must quickly identify it via the parts .manual.
Saves time in the handling if numbers are on a known spot and clearly readable.
One could use a sticker but it is safer with the number stamped in. And some sheet metal processing is going on ...it might not be that complicated stamp it in then..
txxs
XS650 Addict
Bear in mind that there were four (or more) revisions of the "256" mufflers.
Revision "-01" which was on the early XS1 did not have the part number stamped on the muffler.
Revision "-02" ? - suspect no stamped number.
Revision "-04" did have the part number stamped on the muffler.
Most replacement mufflers in Yamaha dealers parts departments after the mid 1970's would have been version "-04" with the number stamped on them.
The answer to your question it depends on the statistical probabilities. I bought the ones in the photos 40 years ago.
The chances of buying a new original early version "-01" of the muffler 51 years later are almost zero.
