Pipe question, Should it have a clamp?


4 replies to this topic
  • Ryah

Posted January 08, 2006 - 07:39 PM

#1

I just bought a 98 yz400 and it shoots flames on deacceleration. I've read the posts that said an air leak at mid pipe could cause this. I've got a Pro Circuit 304 Pipe and header on it. There is no clamp between the head pipe and the silencer portion. Should there be? I was also given an FMF IV silencer that has a clamp on it but it is much smaller in diameter than the Pro Circuit pipe, so it won't fit. So my question is, did the Pro Circuit come with a clamp from the factory and my bike is missing it, or is it a very tight slip fit that this particular pipe doesn't need one.
Thanks

  • jrcgaf364

Posted January 08, 2006 - 07:41 PM

#2

how tight is the fit between the two . I have a whit bros. e series and i needed this stuff called chamber seal. woeked great to seal it up.

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  • Vetmxrider

Posted January 08, 2006 - 09:36 PM

#3

I have a Pro Circuit T-4 system on my 02 YZ426 and it does not use a clamp between the head pipe and the mid pipe connection, just a very tight slip fit.

  • yamwr426

Posted January 09, 2006 - 07:51 AM

#4

On the Pro Circuit set-up it is a slip fit which is sealed through the expansion of the metals when hot. A clamp is not required. Good Luck.

  • aedwards07

Posted January 10, 2006 - 01:35 PM

#5

The clamp is not required.You could put some hi temp silacone inbetween them for a better seal if you are leaking air in.





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