exhaust questions

[jdabreeze]

Need another exhaust for my 80 special. The Kerker is shot with rust and accident damage. Found what appears to be a Jardine spigetti exhaust but on my quick inspection was a 1-3 2-4 not a 1-4 2-3 i could be wrong though it was a quick look. I think he is asking a fair price. Did a manufacturer make a 1-3 2-4 back in the day and who was it? What would be a good price for a used very good Jardine exhaust?

Thanks

[natemoen]

Pretty sure the jardines are 1-3, 2-4.

Good chrome, no damage could easily run $200-300

[TopCatGr58]

Hey Nate and Jdabreeze,

I went perusing thru the bike photos thread and found a few examples of the Jardine Spaghetti 4-2's, and they ARE 1-4 and 2-3!





T.C.

[rover]

spaghetti pipes

The pics TC posted are the ONLY way these pipes were built. The firing order of 4 cyl engines is 1-3-4-2. The stock pipes put 2 pulses in a row into one pipe, then 2 into the other pipe, so you have 2 pulses, then a brief pause in each side pipe, causing the space between pulses to allow a vacuum which will draw air in from the rear of the muffler, and the next series of pulses has to start the whole column of exhaust to push against the air that entered the muffler, causing a bit of back pressure. The spaghetti pipes alternate the pulses to each pipe, not allowing a partial vacuum to cause back pressure. If you get a chance, listen to a bike with the spaghetti pipes, then one with the stock pipes. You will notice that the spaghetti pipe equipped bike sounds much smoother, and actually does run much smoother. Before I put the spaghetti pipes on my SF in the early 90's, I replaced the stock mufflers with some cheap replacement muffs, and soon one of them blew out the baffle, and those riders that followed me said I sounded like a Harley, and that is what caused me to find a replacement for the whole system, the spaghetti pipes were on closeout, and I paid less that $150 for the whole new setup. After the installation, I felt like I had a new bike.

[IanDMacDonald]

I'm fascinated by the looks of spaghetti pipes, and had a set offered to me for free. I turned down the offer, as I was assured my Mac pipes performed better on a dyno readout over the Jardines with the set-up the PO had. Plus, the Jardines were louder, which I have no interest.

[D0wn5h1ft]

I'm fascinated by the looks of spaghetti pipes, and had a set offered to me for free. I turned down the offer, as I was assured my Mac pipes performed better on a dyno readout over the Jardines with the set-up the PO had. Plus, the Jardines were louder, which I have no interest.

I'll convert you over to the straight pipe side soon enough

[IanDMacDonald]

Lmfaoooo. OEM is on my wish list. But, I may go Supertrapp Universals with my tax refund.

[natemoen]

I'll convert you over to the straight pipe side soon enough

Well, no one really has all that much luck getting that setup to work....

[D0wn5h1ft]

Well, no one really has all that much luck getting that setup to work....

I'll concede to "limited success". The big girl likes her back pressure.

[natemoen]

I'll concede to "limited success". The big girl likes her back pressure.

Any of the people that have had "limited success" with open exhausts have been people that got a bike with a rusted out exhaust and just did straight pipes as they rebuilt the bike and tuned to what they found "worked".

Any of the old timers that had a well tuned bike and tried to run straight pipes couldn't get the same performance out of them as with exhaust.

So if you want something that is an ok running bike (with a lot of hassle to get it there) then go ahead and run straight pipes. If you want a well running and powerful bike then use exhaust.

[Rasputin]

I'm fascinated by the looks of spaghetti pipes, and had a set offered to me for free. I turned down the offer, as I was assured my Mac pipes performed better on a dyno readout over the Jardines with the set-up the PO had. Plus, the Jardines were louder, which I have no interest.

I have bought every set I have seen for sale simply cause I want them. "For free" and you turned them down? I am serious when I say you need to get your head in the game and Buy/Sell/Trade anyone here. Those pipes are rare and expensive at best and desireable at the least.

[IanDMacDonald]

Yeah, Rasputin, they were Scott's pipes. He offered them as spare parts along with another parts bike, and five boxes of spare parts. I was trying to be a nice guy and let them know he could sell them on here. Dumb mistake on my part. However, I have a gazillion motorcycle parts in my basementbI can begin selling from various vintage bikes. Selling a tank now to pay for those OEM pipes I just found.