q4 07 yz450 install question


7 replies to this topic
  • FreshDonutsCAN

Posted July 09, 2008 - 05:54 PM

#1

Hey guys just picked up my fmf q4 for my 07 450 and everything fits great exept for the stock clamp that you loosen/tighten to fit where the midpipe connects to the header cannot be adjusted tight enough to keep the pipe inplace as it would on the stock exhaust. Keep in mind i did not replace the header.

What am i doing wrong because nowhere did i read that i would need a tighter adjusting clamp to connect the muffler midpipe to the header.

Thanks!!

  • bigred455

Posted July 09, 2008 - 06:03 PM

#2

Most aftermarket slip - ons you do not use the stock clamp between the head pipe and can junction,you just slip it on as is.This is how my RMZ was with a Pro Circuit slip -on.:thumbsup:

  • FreshDonutsCAN

Posted July 09, 2008 - 06:10 PM

#3

hmmm the only way i would debate that would be with an instruction in the installation procedure.

13. Make sure the header and muffler are in a netural postion and not binding slowly tighten all mounting fasteners and CLAMPS to manufactureres specifications starting at the header flange and finishing at the rearemost muffler mount.

any more help would rock i dont wanna screw this up as i possibly could! :thumbsup:

Also do new exhausts smoke a little to begin with?? or is something wrong?!

  • KAS

Posted July 09, 2008 - 07:13 PM

#4

I think the FMF slip-ons come with an adapter to properly fit the stock header.

New pipes will smoke a tiny bit.

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • FreshDonutsCAN

Posted July 09, 2008 - 07:26 PM

#5

yea the adaptors are sleeves that are used dependant on model to get the slipon pipe overtop the headpipe according to model. I believe i have it figured out bigred is right from what i see in pictures and everything!

Thanks :thumbsup:

  • grayracer513

Posted July 09, 2008 - 08:20 PM

#6

After market pipes almost never use a clamp at the mid pipe, and the stock one is simply too big to be used.

The sure way to tell is to look at the front end of the mid pipe. If it has slots in it like the stock one, it uses a clamp. No slots, no clamp, it's just a slip fit.

  • FreshDonutsCAN

Posted July 09, 2008 - 09:24 PM

#7

Awesome thanks for the help guys :thumbsup:

  • kev8131

Posted July 09, 2008 - 09:26 PM

#8

You'll like that set up, thats exactly how I have mine. Good combo. I came in late on this thread, but yea no clamp needed.

Kev.





Related Content

Forums
Photo

Megabomb Fitment by 288yz450


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 1 reply
Forums
Photo

BIGBORE FOR YZ450F 2006? by Taattie94


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 5 replies
Forums
Photo

2016 YZ450 by CaptainKnobby


Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies
Forums
Photo

The "going back to the other darkside" adventure... by Monk


Dirt Bike   Make / Model Specific   KTM   250/350/450/505 SX-F & XC-F (4-Strokes)
  • Hot  113 replies
Forums
Photo

Is it worth it? (Cam and High compression piston) by macgi77


Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 replies
 
x

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.