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General Category >> Rubber Side Down! >> straight pipe mod
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Message started by slavy on 02/20/05 at 07:54:40

Title: straight pipe mod
Post by slavy on 02/20/05 at 07:54:40

Some time ago i red about a way to modify the straight pipe with an adjustable baffle :o, so You can get some backpressure. It was designet mostly for HD riders, but I think ??? it might help somebody here too.
The deal is this:
You get a washer with a diameter slightly smaller than the ID of the pipe. Weld a 6mm bolt to it and You have something like a sunflower. You drill a 6mm hole in the uderside of the pipe about 1" from the end. Slide the "sunflower" in the pipe and drive the bolt thru the hole. Put a lock washer and a nut and tighten it good. Put the proper wrench in Your pocket and go for a ride. See how the bike runs all thru the range. Turning the "sunflower toward "fully open" or "fully closed" find the "sweet spot" ;D.

Title: Re: straight pipe mod
Post by Greg_650 on 02/20/05 at 08:31:48

slavy wrote:

Kinda like the Throttle Plate in the carb.

Title: Re: straight pipe mod
Post by Max_Morley on 02/20/05 at 09:33:34

They used to be called "snuff or not" on old Honda 350's and other scramblers. ;)

Title: Re: straight pipe mod
Post by bentwheel on 02/20/05 at 09:36:45

Forget about getting a patent. They were popular in the sixties and called Snuff R Not. I still have one from an old Superhawk.

Title: Re: straight pipe mod
Post by bentwheel on 02/20/05 at 09:38:23

Oh sorry Max, you beat me a few minutes.

Title: Re: straight pipe mod
Post by Nightrain on 02/21/05 at 08:26:35

Here it is baby!

http://www.nightrider.com/biketech/exhaust.htm

Let me know if it works. I was planning on running straight pipes but I picked up a sporty pipe with most of the baffeling remvoved.