FMF Gold Series Fatty vs Stock

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FMF Gold Series Fatty vs Stock

Post by ack »

Hey all,

Sorry if this has been covered to death, but I was given an FMF Gold Series Fatty and FMF silencer to replace the stock pipes on my '05 KDX220.

Wondering if anyone can tell me if there'll be a noticeable difference from stock.
I was riding my buddies 220 late last year, and his is noticeably snappier.
He's got an FMF Gold Series Gnarly/PowerCore II on his.

Just wondering if it's worth the effort to swap it out or should I try to save up and get a Gnarly pipe. I hate to just waste an opportunity to improve the performance for free.

Thanks,
Steve
Steve
Raleigh, NC
'05 KDX 220, '00 KTM 200 MXC, '04 KLR 650, '03 WR450
Just learnin' and looking to have fun.
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scheckaet
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Post by scheckaet »

should be worth it, especially if it's FREE. Anything is better than stock.
make sure you jet your bike properly, this makes a huge difference.
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Post by ack »

>|<>QBB<
scheckaet wrote:should be worth it, especially if it's FREE. Anything is better than stock.
make sure you jet your bike properly, this makes a huge difference.
Thanks. Free is very good.
I'm currently jetted for where I ride most of time in Eastern NC (roughly at sea-level):
Main: 145
Pilot: 42
Needle: R1173L (3rd position)

I had a quick look on FMF's Jetting page (they only list up to the '04 for some reason) - looks like I'm pretty close (their Main range is 145-148).

- thanks for the quick response.
Steve
Raleigh, NC
'05 KDX 220, '00 KTM 200 MXC, '04 KLR 650, '03 WR450
Just learnin' and looking to have fun.
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Post by scheckaet »

Your jetting looks ok but FYI here is a good tutorial:
http://www.kdxrider.net/forums/viewtopic.php?t=1156
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Post by ack »

Well, after searching through the FMF site, I don't think the Fatty is going to fit on my '05 KDX220. They don't even list the 220 in the fitment guide.

This Fatty came off an older 200.

Bummer
Steve
Raleigh, NC
'05 KDX 220, '00 KTM 200 MXC, '04 KLR 650, '03 WR450
Just learnin' and looking to have fun.
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Post by frankenschwinn »

Older when? 96 and up 200 and 220 pipe fitment is the same. If if will fit a 96 or newer 200 it will fit the 220.
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Post by scheckaet »

>|<>QBB<
frankenschwinn wrote:Older when? 96 and up 200 and 220 pipe fitment is the same. If if will fit a 96 or newer 200 it will fit the 220.
+1
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Post by Julien D »

>|<>QBB<
frankenschwinn wrote:Older when? 96 and up 200 and 220 pipe fitment is the same. If if will fit a 96 or newer 200 it will fit the 220.
+2
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Post by ack »

I think it was a '96 200. I'l double-check tomorrow.
Thanks for the info.
Steve
Raleigh, NC
'05 KDX 220, '00 KTM 200 MXC, '04 KLR 650, '03 WR450
Just learnin' and looking to have fun.
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Post by kdxmaniac »

i like fatties.........................pipes.

thats what i run on just about all my bikes. they seem to be a real good pipe for all around riding. def better than stock, and if its free, i wouldnt argue what pipe it was! :supz:
my bikes
-------------
96 ktm 300
96 XR400R
07 hayabusa
77 kz 1000
85 goldwing 1200
02 BIG DOG PITBULL

gone but not forgotten
96 kdx 200
98 ktm 380 "because it dang near killed me!"
97 ktm 360
96 ktm 250
93 wr 250
94 dr 350s
93 kx 250
07 gsxr 1000
99 bandit 1200
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Post by Julien D »

Torque pipe = low end
Rev pipe = top end
Fatty = middle of the road

That's my understanding anyway.....
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Post by scheckaet »

>|<>QBB<
juliend wrote:Torque pipe = low end
Rev pipe = top end
Fatty = middle of the road

That's my understanding anyway.....
+1
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Post by SS109 »

It is absolutely worth swapping the pipe. Lighter weight and more power. The only negative is more noise.
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Current KDX: '98 KDX220
Old KDX: '90 KDX200 -White/Blue
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Post by Julien D »

Wow, I somehow overlooked that you have a 220. The info i posted is not quite right for a 220. The Fatty is still a good pipe for you though. As long as it's 95+ bolt it on and enjoy. The rev and torque pipes act a bit different on the 220 though. The REV being a 220 torque pipe, and the torque pipe being useless.
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Post by ack »

I checked. The pipe came off a '92 KDX 200.
Steve
Raleigh, NC
'05 KDX 220, '00 KTM 200 MXC, '04 KLR 650, '03 WR450
Just learnin' and looking to have fun.
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scheckaet
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Post by scheckaet »

sell it and get a rev pipe for your 220 :wink:
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Post by ack »

Well, I'm going to give it back to my buddy.
But I'm going to save my pennies and buy a decent FMF Pipe & silencer (saving $ is hard to do when you own a problematic KTM).

Thanks for the help.
Steve
Raleigh, NC
'05 KDX 220, '00 KTM 200 MXC, '04 KLR 650, '03 WR450
Just learnin' and looking to have fun.
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scheckaet
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Post by scheckaet »

>|<>QBB<[quote="ack"](saving $ is hard to do when you own a problematic KTM).
quote]

is there any other kind? :mrgreen:
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Post by kdxmaniac »

hey...........whatch it now!!!! :evil: :lol:
my bikes
-------------
96 ktm 300
96 XR400R
07 hayabusa
77 kz 1000
85 goldwing 1200
02 BIG DOG PITBULL

gone but not forgotten
96 kdx 200
98 ktm 380 "because it dang near killed me!"
97 ktm 360
96 ktm 250
93 wr 250
94 dr 350s
93 kx 250
07 gsxr 1000
99 bandit 1200
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fuzzy
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Post by fuzzy »

Save your $ on the silencer. The stock one is great.
'91 KDX 200 Project $300 KDX
'95 KDX 200 Project $600 KDX
'94 WR 250 Always a project
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