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Old 10-21-2009, 09:14 AM   #91
rallyelc4
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??

hi all just got a fcr off a 05 ktm525smr to fit to my 04 lc4 my ?? is it does not have a tps its just blocked flush is this a problem???? PLEASE HELP,dan
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Old 10-21-2009, 11:23 AM   #92
666
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Quote:
Originally Posted by rallyelc4
hi all just got a fcr off a 05 ktm525smr to fit to my 04 lc4 my ?? is it does not have a tps its just blocked flush is this a problem???? PLEASE HELP,dan
My 00 640 doesn't have TPS to begin with, so it wasn't a problem. What year is yours? Edit your signature so it displays what bike you got.
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Old 10-21-2009, 11:35 AM   #93
rallyelc4
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04 lc4 e
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2004 KTM 640lc4 enduro/rallye cam/FCRRGV rims
came with a sxc comp pipe
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Old 10-21-2009, 07:11 PM   #94
halfcab
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Quote:
Originally Posted by rallyelc4
hi all just got a fcr off a 05 ktm525smr to fit to my 04 lc4 my ?? is it does not have a tps its just blocked flush is this a problem???? PLEASE HELP,dan
No it's not. Unplug the old carb/TPS and install the FCR.

Before you install the FCR. Make a note of what needle and where clip is, what main jet, pilot jet.
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Old 10-22-2009, 12:13 AM   #95
rallyelc4
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get back to all asap
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2004 KTM 640lc4 enduro/rallye cam/FCRRGV rims
came with a sxc comp pipe
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Old 10-22-2009, 02:45 PM   #96
borborygmus
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do these things fit?

just bought a fcr 41 off an 07 ktm 450 and it's not close! the exhaust is very much in the way.I will have to lower it 1.5 inches,and I don't think its gonna move that much, am I doing something wrong or......? btw it's going on a 2000 640 adv.

And which cables to use? the stock ? the cables that came with the carb have no threaded ends to fit the stock housing/throttle tube so thats a no go. Some one mentioned 'motion pro' , is there a part #

thanks for the help!!!!
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Old 10-23-2009, 06:42 AM   #97
halfcab
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Quote:
Originally Posted by drmv62
just bought a fcr 41 off an 07 ktm 450 and it's not close! the exhaust is very much in the way.I will have to lower it 1.5 inches,and I don't think its gonna move that much, am I doing something wrong or......? btw it's going on a 2000 640 adv.

And which cables to use? the stock ? the cables that came with the carb have no threaded ends to fit the stock housing/throttle tube so thats a no go. Some one mentioned 'motion pro' , is there a part #

thanks for the help!!!!
I have a 39 FCR from a 06 EXC, tried different cable, my stock 01 BST cables worked best.
The stock 01 header pipe did work but as vary close, a 03 pipe gives more clearance.
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Old 10-23-2009, 11:04 AM   #98
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Quote:
Originally Posted by drmv62
just bought a fcr 41 off an 07 ktm 450 and it's not close! the exhaust is very much in the way.I will have to lower it 1.5 inches,and I don't think its gonna move that much, am I doing something wrong or......? btw it's going on a 2000 640 adv.

And which cables to use? the stock ? the cables that came with the carb have no threaded ends to fit the stock housing/throttle tube so thats a no go. Some one mentioned 'motion pro' , is there a part #

thanks for the help!!!!
You can wiggle and bang exhaust out of the way. Also turn carb a little.
Cables: I have a friend at motion pro who made me custom throttle cables.
It worked on my 00 640
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Old 10-24-2009, 04:07 PM   #99
borborygmus
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done! $ well spent. 41 mm fcr

had to cut pie sections 180 degrees apart and weld(lookes like hand made 2-stroke pipe) but works perfect, the diff between the fcr and the old bst is nite and day. $ well spent! vibrates less , very smoove on the idle, snappy bottom, middle about same without bogs and pops, the top end is amazing- at least 10 mph on top. The best thing is on a very rough trail the power is right there, no cough and hesitations!!!!!!!!!!!!
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Old 11-03-2009, 09:59 AM   #100
jmcclesk
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I am thinking about a fcr for my 03 adv 640. The local dealership stated that a fcr will cut the vibrations by at least 60%. I find that hard to belive. would those of you that have done this agree??? Also I am thinking about the 39 because most of the off road stuff i do is in the nor-cal foothills. Is the general thought that the 39 is more to low end tight stuff and the 41 for higher speed desert areas??? thanks
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Old 11-03-2009, 10:37 AM   #101
666
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Quote:
Originally Posted by jmcclesk
The local dealership stated that a fcr will cut the vibrations by at least 60%.
BS. I didn't notice much difference between well tuned BST and FCR.
There is big difference between stock bike and bike with new pipe, airbox mod and correct jetting etc.

I wonder how did they come up with 60%? May be it's 53.5% better? Or may be 71%?
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Old 02-21-2010, 12:28 PM   #102
mbmt
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airbox boot

I have a 1996 KTM RXC 620 and recently acquired a FCR39 for it. My FCR is from a 2005 YZ450F. This particular FCR does not have the changable airboot to airbox adapter thingy...you know from the carb to the airbox boot. Does that make any sense?

Anyway, my question is how much longer is the airbox boot from the SXC compared to stock and what is the inside diameter of the carb side of the boot?

Thanks
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Old 04-12-2010, 10:41 AM   #103
wallache
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I just scored a FCR 39 from a Polaris 450 quad (powered by KTM ). To clear the exhaust on my '02 640a, I have to tilt it quite a bit for only a 1/16" or so of clearance:


Will this work...or has it now become a right turn only bike.

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Old 04-12-2010, 02:35 PM   #104
laramie LC4
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assuming you have a carb that will fit (1st generation) You need to move the vent line on the right side. move that around some and you will get some more room to play with. also, dont try and put on the throttle linkage cover, you will never get it to fit.

if you have one of the newer models of FCR's (generation 2 and 3) then you may have to swap your header out for a '03 and later. in europe they came with the fcr so the new header was made to have a little more room and bend out of the way.

good luck,

laramie
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Old 04-12-2010, 04:46 PM   #105
666
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I got exhaust from 03+ adventure and it clears fcr nicely, I don't even had to tilt fcr. There is at least 1" clearance. 03+ has different bent(shape) and thickness.
Direct bolt on, I didn't even change exhaust gaskets. I have 2000 adv. Fcr 41 from 07 450rmz. I had to buy Noss adapter for airbox side



Stock exhaust didn't work at all, check this picture
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Moab Ride Report http://www.advrider.com/forums/showthread.php?t=629423
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