FMF O-Ring & Pipe Spring Kit

$9.99 - $11.99
3.90 out of 5 stars
Fitment Expert:
Dirt Bike Dirt Bike ATV Make Year Model
 
FMF O-Ring & Pipe Spring Kit
FMF O-Ring & Pipe Spring Kit
  • Description
  • Reviews (35)
  • Q&A (15)
  • Fitment

The FMF O-Ring & Pipe Spring Kit offers high quality replacement pipe O-rings and springs for FMF motorcycle and ATV exhausts.

  • FMF constructed each piece of the kit with top quality coated materials for maximum performance and durability.
  • Kit includes springs and O-rings for one exhaust system.
  • Note: For FMF exhaust ONLY.
3.9 out of 5 stars (35)
3.9 out of 5 stars
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1-10 of 35
Overall 4 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Woodsconsin
Easy install

Installed easy, works well, no more exhaust leak.

Overall 3 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Top 50 Contributor Top 100 Contributor
Location: New York, NY, USA
peter
Didn't seal well

rings seemed kinda small. didn't really seal well and i was blowing smoke from the head after two rides

Overall 3 out of 5 stars
Durability
Ease of Installation
Style
Verified Purchaser
Location: ct
jdaycourseofficial
Horrible springs

Your oem springs are much better. I bought this for new springs and read the reviews about some breaking. One of mine broke a few races in. Plus theyre a little longer than my oem yz springs and not as stiff. Orings are orings but dont expect much from these springs

Overall 4 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Top 500 Contributor Verified Purchaser
Location: Oregon, USA
XxIcedaddyxX
FMF O-Ring & Pipe Spring Kit

5/5 on ease of installation ONLY if you have a spring removal/install tool (I have FMF's). Overall rating 4/5 because they are just o-rings. Durability/performance/power get a 3/5 only because I haven't tested against anything else and they WORK. I had old worn rings and replaced them with these and they sealed up and got rid of all smoke coming out between my cylinder and pipe.

Overall 2 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Location: Joint Base Lewis-McChord, WA, USA
crasher612
Broke in an hour.

Just rebuilt my 2000 YZ 125 motor, and purchased this kit to replace the old springs and seals since I have a fatty pipe and turbine core 2 silencer. During break in time with 15:1 fuel one of the brand new springs snapped off the pipe. It was running at 1/4 throttle for an hour in 3rd gear on flat ground. Seriously not happy with this kit from such a reputable company.

Overall 3 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Top 250 Contributor
Location: Startown, Newton, NC 28658, USA
Jskennedy15
Springs good. O rings bad.

The springs are great but the o rings needed to be replaced after 5 hours. not very happy.

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Detroit MI
jbierkamp
Good buy

Fits perfect no complaints so far

Overall 1 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Charlotte, NC
NotSoBrappy
Broken First Moto

Installed the springs using the FMF Spring Puller (Great tool) and the broke during my first moto at the track. The hook parts on the ends are the weak points. I found one spring dangling from my case with the opposite hook completely missing. '04 KX250

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Top 1000 Contributor Verified Purchaser
Location: Bellville, TX
Blake343
O-Rings

Fit perfectly on my Fatty, RM250

Overall 4 out of 5 stars
Location: Commerce, Ga
djones87
Nice

worked pretty good not as strong as i would have thought. The rings are a waste though.

1-10 of 35
Total Questions (15)
Questions with answers:
  15
Questions without answers:
0
1-10 of 15
motocmg 1 month 21 days ago Location: Austin, TX, USA
I have an 04 ktm 125sx with a 200cc top end and i have fmf fatty exhaust, should i put the bike model as a 04 125sx or a 200sx?
The problem is I bought the bike used and I don't know if it has the fmf fatty for a 125 or a 200. But after my first ride smoke started blowing out of the front of the exhaust so I definitely need new rings, but I don't know what bike to order it for, or if it even matters ??? Thanks for the help
MotoSport Staff Expert
1 month 20 days ago
MotoSportExpert
Most likely you will want to order the seals for the 2004 KTM 125sx and they can be found in our OEM section here: http://www.motosport.com/dirtbike/oem-parts/ktm/2004/125sx/exhaust-pipe?fam=Chassis
Derekkk 2 months 10 days ago
Does it fit witch my fatty gold pipe In my cr250r 99?
Expert MotoSport Staff
2 months 7 days ago
MotoSportExpert
Yes. Just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct kit for your bike. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
Rmrider 2 months 26 days ago Location: Southcarolina
I have a rm100 2003 withe stock pipe will these springs and o-ring work for my bike?
MotoSport Staff Expert
2 months 25 days ago
MotoSportExpert
Yes, Just be sure to correctly select the Year/Make/Model of your bike before ordering so we can be sure to send you the correct kit for your bike. Also, feel free to give us a call at 888-676-8853 and we would be happy to help you out with your order.
kxboy18 Over 5 months ago Location: Pittsburgh, PA, USA
I have a 1998 kdx 200 with a fmf gnarly pipe will these fit on it?
Expert MotoSport Staff
Over 5 months ago
MotoSportExpert
No, FMF does not offer a kit for the 1998 Kawasaki KDX200. You can find the OEM springs and orings in the OEM section here: http://www.motosport.com/dirtbike/oem-parts/kawasaki/1998/kdx200/muffler%28s%29
kaddis Over 6 months ago
I have a 2003 rm 65 with a fmf fatty it says these dont fit my bike ?
Top 1 Contributor
Over 6 months ago
MotoSportExpert
Yes that is correct. You will need to order new OEM springs and pipe seals for your RM65: http://www.motosport.com/dirtbike/oem-parts
kyle 1 year 1 month ago
Cant find any orings that will fit my bike. 89 honda cr250r. Currently have a fmf gnarly exhaust. Will these fit?
Wondering if these o rings will fit. If not do you know where I can purchase some at?
MotoSport Staff Expert
1 year 1 month ago Location: Portland, OR, USA
MotoSportRyanT
Unfortunately, the FMF pipe and spring kit is not made to fit your 1989 Honda CR250R. You can find the exhaust seal and springs for your bike in the OEM parts diagrams for your bike here: http://www.motosport.com/dirtbike/oem-parts/HONDA/1989/CR250/CYLINDER-HEAD-86_89
Mort 1 year 7 months ago
I went to add this item to my cart and it said it did not fit my bike i have a 2004 cr 125r with a fmf fatty pipe. what should i buy?
MotoSport Staff Expert
1 year 7 months ago Location: Portland, OR, USA
MotoSportRyanT
From looking at the OEM diagrams for your 2004 Honda CR125 I can see that it actually does not use this style O-Ring Set up. It uses a larger exhaust seal ring. It does use springs but FMF does not have a kit with just the springs for your bike. I would recommend ordering the Honda OEM Seal and Springs. You would need: Honda OEM #91304-KZ4-L11 (seal), Honda OEM #18332-KS7-830 (springs). You would want to order 1 seal and 2 springs. [ Here is a link to the page that shows the seal at the cylinder head: http://www.motosport.com/dirtbike/oem-parts/HONDA/2004/CR125/CYLINDER-HEAD-%28'04%29 ]
Keif 1 year 9 months ago Location: Louisiana, USA
Will this product fit on a pro circuit platinum pipe?
MotoSport Staff
1 year 9 months ago
MotoSportGrant
Yes, just make sure to profile your bikes make, model and year correctly.
yzyammy Over 5 years ago Location: yzyammy
A must or does it matter?
I have a 2000 yz250 and you can see the smoke sometimes comes out and leaks a bit out of where the pipe meets the cylinder. i was wondering if this would drag down hp?? I have weak springs and no o rings
Top 100 Contributor Top 50 Contributor
Over 5 years ago Location: Houston,Tx
kawasakiboy
yes its totaly worth it!!!!
quadzila Over 5 years ago
Will this work on a 95 cr500 with fatty pipe?
MotoSport Staff
Over 5 years ago Location: Tualatin
JesseC
sure will!
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