Originally posted by Jigantor
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A two stroke exhaust pipe
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A motorcycle does not work like a car, and an ultra-low c/g, even if you could achieve such a thing, would not be at all desireable, as it is in a car. And not that it counts for much, but besides being prone to dragging, I thought the low-mounted factory pipes on my old '76 RD400C Yamaha looked dorky, so they had to go! (One of my 2011 resolutions is to learn how to post pix; but first I need to learn how to keep this beach from deleting my text ).
Good looking pipe!
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Originally posted by Rojodiablo View PostYes, the purge on the pipe makes a difference even on a dirtbike. In fact, more so, simply because of the abuse factor. For the OP, what I do when welding pipes, whether it be headers for a truck, or a bike, is to cap the end with masking tape, and insert a purge line. On a 2 stroke pipe, a good thing to do is to tack it up in as many sections as you can, using a purge line. Once spotted together, then you can use masking tape over the seams to prevent gas loss. As pointed out earlier, cool welds, and not too long. Alternate to keep the pipe from tweaking as you weld it up. Tape up a seam you are not working at that time, and when you get close to the tape, peel it of, and clean with acetone lightly. Same process for SS, or Ti. If regular steel is crap, then i will purge it too to minimize my issues.
Also, have you checked into Hydro Forming your pipes? The ones I have on my RD400 were done that way.Dynasty 200 DX
Lincoln 140
O/A
Gradatim vincimus
"We conquer by degrees."
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