FMF Power Up Jet Kit

$59.99 - $83.99
3.80 out of 5 stars
Fitment Expert:
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FMF Power Up Jet Kit
FMF Power Up Jet Kit
  • Description
  • Reviews (52)
  • Q&A (38)
  • Fitment
  • Power-Up jet kit makes jetting your carb simple.
  • FMF teamed up with Dynojet to produce a kit that offers a selection of jets and/or needles to get maximum horsepower out of ATV fitted with an FMF exhaust.
  • Easy to use instructions have diagrams and step-by-step procedures to help you get your jetting where it needs to be, no matter the elevation.
  • No more driving back and forth to the dealer with a handful of jets and needles with a million questions running around in your head on where to start.
3.8 out of 5 stars (52)
3.8 out of 5 stars
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Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Schultz
Fmf power up jet kit

Installed as directed an carb performed excellent. Installation is easy and it comes with extra main jets for changes in altitude.

Overall 1 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
D3VILxDOG
Never buy an FMF jet kit again

I bought this kit and it does not come with the jets that were needed on my 07 crf450. I had to order factory jets in different sizes because they were not included in the kit. Disappointed.

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Arkansas, USA
bigloghauler99
Nice kit

Great product. Everything needed to rejet after k&n and big gun eco install.Could have used two sets of instructions instead of combining pre and post '06 trx450r in the same instructions. Got a little confusing but nothing a little common sense couldn't take care of.

Overall 5 out of 5 stars
Ease of Installation
Performance
Power
Location: Ohio
MXOldTimer
Clean Power Delivery

Performs exactly as advertised. Aside from accessing the carb pretty simple to install. The instruction were clear an easy to follow. Followed the carb setting from instructions and bike started with just 2 kicks after install. Removed dead spot in throttle and can definitely feel the difference. No bog anywhere. Great an improvement in the bottom end.

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Medina, OH
Carl400ex
Jet Kit

This is a fantastic kit my FMF. It was fairly easy to install myself and the gains in power were felt instantly. The instructions are easy to follow.

Overall 1 out of 5 stars
Ease of Installation
Performance
Power
Verified Purchaser
Location: Wenatchee, wa
3ric
Don't waste your money

Directions are difficult to follow, doesn't contain the jets you need. It only calls to replace the needle, and spacers. I spent days trying to get it to work then bought a JDM kit and was running in an hour...

Overall 4 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Location: Tennesee
Hunter98vtec

FMF Customer service is a little weak, waited forever to speak with a tech, then his information was like he was reading from a book. Called back and actually spoke with somone who knew what they were talking about and suggested a fix for the bog I was getting, it worked.

Overall 5 out of 5 stars
Location: San Jose, CA
DuneGirl
Great Purchase

I am very pleased with the extra power!

Overall 4 out of 5 stars
Location: Kenai, Alaska
Tyler24
Easy power

installed the jet kit after installing a fmf powercore full exhaust system and K&N filter. it really helped with low and top end power while increasing throttle response and acceleration. directions were fairly easy to understand. they should add more tuning tips in instructions because it is very vague on what to do after installed. with these additions my crf 250 rips!

Overall 4 out of 5 stars
Location: Santa Rosa, GU
tjdrift
Useful kit....?

I own a 350 Warrior with a K&N filter, FMF Q4 exhuast w/power bomb header. My quad was ripping so I was hesitant to change the jet. But, FMF recommended to run the kit, so I did. After reading the informative yet slightly complicated trouble shooting and jet selection page. I installed the needle, main jet, and fuel mix adjustment screw which was very easy(installation directions was great). I notice my stock jet is #145, so I install the recommended jet #148, slightly larger. But when I ran it, at mid throttle it bogged and couldn't run great. I was very surprise, so I changed the jet to a larger #150, and it still bogged. I then decided to install the stock jet back in just to see what would happen and it started to ripp again. The needle setting was the only thing that I found useful in the kit. I did compare the needles and the FMF was slighter more tapered. If you are planning to continue your build or mod, this kit would be great because it comes with many jet sizes for your mod needs. The kit does include #146 which is a size in between the stock and recommended #148(didn't work) that i haven't tried yet, but the stock jet runs SUPER, so I'm gonna leave it until I feel like taking out the carb again. Also, I'm gonna get a CDI with higher RPM to see if that would make a difference. But, I will say that with the jet changes.. my quad does redline a little faster, because I do notice that I have to shift 1st and 2nd gear faster, so acceleration did improve. I also can easily wheelie my quad now, low end seems more responseful. That why I'm giving it a 4 star.

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Total Questions (38)
Questions with answers:
  38
Questions without answers:
0
2strokekilla Location: Long Island, New York, USA
Application?...
Hyundaikawa
1-10 of 38
dBcooper710 19 days ago Location: wapato wa
Is there a jet kit for my honda 85 atc 250r avaliable?
Expert MotoSport Staff
18 days ago
MotoSportExpert
If the part is available through one of our suppliers, we would be happy to order it for you. Please contact one of our sales professionals to inquire about special orders and availability. Dirt Bike / ATV: 1-888-676-8853
Jake 1 month 7 days ago Location: Eldred, PA 16731, USA
I recently installed a Pro Circuit T-4 S/A Silencer and i was just wondering if i would need to install a jet kit?
If a jet kit is needed, would yours suit my needs ?
MotoSport Staff Expert
1 month 5 days ago
MotoSportExpert
Normally when installing a slip-on only minor jetting changes are needed, if any at all. If your bike is currently jetted properly you will likely not have to make any changes after installing this slip-on. Jetting can be very tricky, there isn't one setting that will work everywhere with every bike. I would recommend installing the exhaust and riding the bike to see how it is running then tuning your carburetor from there if necessary.
2strokekilla 4 months 25 days ago Location: Long Island, New York, USA
Can i use these jets with a different brand exhaust?
Expert MotoSport Staff
4 months 25 days ago
MotoSportExpert
Yes the FMF Power Up Jet Kit would work great with different brand exhaust as well.
crf250r Over 11 months ago
Will this fit my 2004 crf250r?
MotoSport Staff Expert
Over 10 months 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 jet 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.
henszito 1 year ago Location: New jersey
Installing an fmf power bomb full exhaust with a uni air filter on a 2014 Honda 450r.. what size jet to use?
Top 1 Contributor Expert MotoSport Staff
1 year ago
MotoSportGrantK
There is not a specific setting I could give you for jetting your bike. It would really depend on your location (altitude/temperature) and how your bike is running with the current jetting. Jetting can be very tricky, there isn't one setting that will work everywhere with every bike. I would recommend taking your bike to a local motorcycle dealership??s service department to have your bike properly jetted.ng Kit for your bike: http://www.motosport.com/dirtbike/jd-jetting-jet-kit?ride=YAMAHA;YZ250;2004&m
Hyundaikawa 1 year ago
Application?
At the top of the page it says this is compatible with my 2014 kawasaki klr650, in the application list at the bottom of the page it does not lost my bike. Is this kit avaible for my bike?
MotoSport Staff Expert Top 1 Contributor
1 year ago
MotoSportGrantK
The FMF Power Up Jet Kit is available for your 2014 Kawasaki KLR 650 and is listed in the fitment tab. Just make sure the make/model/year is profiled correctly before ordering so we can be sure to send you the correct FMF Power Up Jet 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.
caronboy98 1 year 3 months ago
Will this fit my 2002 xr400r?
Expert MotoSport Staff
1 year 3 months ago Location: Portland, OR, USA
MotoSportRyanT
Unfortunately, The FMF Power Up Jet kit is not available for the 2002 Honda XR400R. We do offer replacement OEM jets for your bike in various sizes. You can find the OEM jets for your XR in the OEM parts diagrams for your bike here: http://www.motosport.com/dirtbike/oem-parts/HONDA/2002/XR400R/CARBURETOR
Arthur 1 year 3 months ago
Just need a little advise. THANKS?
My wife and I have two completely stock 2005 Honda TRX450R quads that are kick start. I recently put on the Powercore 4 FMF pipes on them. I ride at Pismo beach which is sea level. I saw this FMF Power Up Jet Kit and it looks like what I need. Do I need to buy two of these or does the kit contain enough parts to do 2? Can you point me in the right direction please. Also since the quads are older do you have rebuild kits for the carburetors that I can purchase since I am already into the carbs. Thanks, A.J.
MotoSport Staff Expert
1 year 3 months ago Location: Portland, OR, USA
MotoSportRyanT
You will need to purchase one jet kit per bike, so you would need 2 jet kits total to do both bike. I would recommend taking a look at the Moose Carburetor Repair kit as well if you were looking to rebuild the carburetors completely. http://www.motosport.com/atv/MOOSE-CARBURETOR-REPAIR-KIT
SteveKremer 1 year 4 months ago Location: St. Louis
Will this work on my '04 YZ 250?
I have an 2004 YZ 250 that I recently put a FMF Fatty and Powercore 2 silencer on. It is know having issues that I believe is due to jetting due to the recommendations by FMF. Will this fit in my bike? And is this the correct size jets to solve my problem?
Expert MotoSport Staff
1 year 4 months ago Location: Portland, OR, USA
MotoSportRyanT
Unfortunately, the FMF Jet Kit is not made for your 2004 Yamaha YZ250. I would recommend taking a look at the JD Jetting Kit for your bike. There is not a specific setting I could give you for jetting your bike. It would really depend on your location (altitude/temperature) and how your bike is running with the current jetting. . The JD Jetting Kit will come with instructions to help you jet your bike properly for your location. Jetting can be very tricky, there isn't one setting that will work everywhere with every bike. I would recommend taking your bike to a motorcycle with a service department to have it properly jetted. Here is a link to the JD Jetting Kit for your bike: http://www.motosport.com/dirtbike/jd-jetting-jet-kit?ride=YAMAHA;YZ250;2004&mmy_source=topnav
123773 1 year 5 months ago
On a crf250r does this work with a stock/oem exhaust?
MotoSport Staff Expert
1 year 5 months ago Location: Portland, OR, USA
MotoSportRyanT
Yes, really this kit would help you tune your jetting regardless of what exhaust you are running on your bike.
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