FMF pipe issue

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Jhilimire

FMF pipe issue

Post by Jhilimire »

My kdx has a 14" FMF pipe with about a 1" gash/dent about 1" from the end so I took muffler apart to see about welding it

2 questions I have

the packing in there only fills up about half...is that right?

can I just cut the muffler down to a 12", cutting off the damage? then replace with new packing

thanks
Last edited by Jhilimire on 03:45 pm Feb 21 2010, edited 1 time in total.
Tomm9050
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Post by Tomm9050 »

Pipe or muffler? photos might help
1992 KDX 200; RB head; Fatty pipe; stock carb; Stock silencer

40 / 150 / CGK pos 3
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Mr. Wibbens
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Post by Mr. Wibbens »

>|<>QBB<
Tomm9050 wrote:Pipe or muffler? photos might help
He mentioned "packing"
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Jhilimire

Post by Jhilimire »

98 kdx 200 2 stroke
pro circut pipe
FMF muffler that is 14" long with about 10" of packing in it

thanks
Jhilimire

Post by Jhilimire »

help
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barryadam
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Post by barryadam »

If it is a turbine core, the inner tube/bulkhead constuction will make that a bit challenging, but not that difficult.

If it is a Powercore, I think it's a straight through tube, and shortening it will just make it a bit louder (less absorbtion).

Is it less work to modify it or fix it?
How about you just work the dent outta the can now that it is apart.
Or is it made of the aluminum extrusion?
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Jhilimire

Post by Jhilimire »

its a powercore, inner tube runs strait up middle with thousands of 1/8"holes in it...I already cut the damage off only had to cut 1 3/4 inches off, then make inner tube 1/2 inch shorter, rerolled the packing around inner tube and done. muffler still has same amout of packing cause at 14 inches there was only about 11" of packing in there. thanks
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