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  • FMF takes their decades of racing and making world class exhaust to produce the Power Up Jet Kit for motorcycles and ATVs, with the goal of achieving maximum performance in an easy to install kit.
  • FMF teamed up with Dynojet to produce a kit that offers a selection of jets and/or needles to get the maximum performance out of your motorcycle or ATV.
  • The FMF Power Up Jet Kit makes jetting your carburetor easy with their easy to read and follow step-by-step directions that include charts to get your exact jetting, regardless of your elevation.
  • In most cases using the FMF Power Up Jet kit will increase horsepower all through the entire powerband.

FMF POWER UP JET KIT

Price Range: $13.77 - $83.99
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Overall:
5 out of 5
5 out of 5
Ease of Installation:
5 out of 5
Ease of Installation out of 5
Style:
5 out of 5
Style out of 5
Durability:
5 out of 5
Durability out of 5
Performance:
4 out of 5
Performance out of 5
Location: Lima, oh
Great
" Bought for a 05 trx450 that was a basketcase. I installed a new Hot Rods stroker crank and the quad would start making a weird noise as it approached mid throttle and stalled out if you gave it any more gas. This jet kit is very simple and easy to install for anyone that knows their way around a carb and it really bought the engine to life. HOWEVER! i did not feel like the engine was powerful enough compared to my crf450r's but this is also my first quad every so maybe im not use to the weight difference or still need to change the jets a little for the right set up.. Either way, this kit got the quad moving on its own power and im more then happy "
Overall:
1 out of 5
1 out of 5
Ease of Installation:
4 out of 5
Ease of Installation out of 5
Style:
1 out of 5
Style out of 5
Durability:
1 out of 5
Durability out of 5
Performance:
1 out of 5
Performance out of 5
Location: Alma, CO
Bike runs very poorly
" Made the bike run very poorly. I followed the instructions and put in what they recommended... Bike ran very eradically. I changed the settings on the needle jet, the main jet size, the pilot screw turns... same eradic problems, the bike is unrideable. I made all these changes one at a time, very methodically. I went back to the stock jets, and the bike rips again! FMF doesn't even make jets, these are dynojets. Annoyed. "
Overall:
5 out of 5
5 out of 5
Ease of Installation:
5 out of 5
Ease of Installation out of 5
Style:
3 out of 5
Style out of 5
Durability:
4 out of 5
Durability out of 5
Performance:
5 out of 5
Performance out of 5
Location: Phoenix, AZ
Wake Up Call.....
" I was suffering with the infamous bog that plagued the Honda 250's. With the tips from the great riders from the MXA, and this kit I was able to bring my 06 Honda 250 to life. "
Overall:
2 out of 5
2 out of 5
Ease of Installation:
5 out of 5
Ease of Installation out of 5
Style:
1 out of 5
Style out of 5
Durability:
3 out of 5
Durability out of 5
Performance:
1 out of 5
Performance out of 5
Location: Atlanta, GA
save your money!
" I have a 2008 TRX450R and bought the kit thinking it would be a good set of jets. The biggest main in the kit was a 132. Stock jet on the 450R is a 122. If you're looking to get a little more out of your stock airbox, filter, and exhaust it would be a good kit, but with any aftermarket exhaust you'll need about a 165. I would recommend saving your money and going with the HRC kit...you won't be disappointed! Overall the only use I was able to get out of this product was a D-shaped tool for the fuel screw and a better needle. "
Overall:
4 out of 5
4 out of 5
Ease of Installation:
4 out of 5
Ease of Installation out of 5
Durability:
5 out of 5
Durability out of 5
Performance:
5 out of 5
Performance out of 5
Location: seneca new jersey
ehh
" pain to get in but a good set of jets their different lookin from my stockj jet i got a yfz 450 (08) and once this was put in right it was awesome "
Overall:
4 out of 5
4 out of 5
Location: Colchester, CT
KTM 450 - Worked
" Stock jetting on my KTM couldn't be done right with aftermarket slip on FMF pipe. With the FMF kit I get easier starting, better cold idling and better low throttle response. Power is smoother from top to bottom. Easy to install. "
Overall:
1 out of 5
1 out of 5
Ease of Installation:
5 out of 5
Ease of Installation out of 5
Style:
1 out of 5
Style out of 5
Durability:
1 out of 5
Durability out of 5
Performance:
1 out of 5
Performance out of 5
Location: anderson.mo
did not work
" installed as listed in kit,2007 rmz 450.with 490cc kit,yoshi exh,rekluse clutch,would not accelerate through mid-rang,poping and cutting out,went thru procedure again,same probems,reinstalled stock jet and needle,ran great, reinstalled kit again same problems,removed and put back to stock,ran great,did a final ajustment to stock needle down 1 groove and to stock.165 main.ran perfect,only help from kit was idle mixture adjustment.which worked,2.5 turns out.love fmf stuff but this kit did not work for me. "
Overall:
5 out of 5
5 out of 5
Location: South Bend IN.
big boost for the bucks
" great results but look up dyno jet instructions for more detailed advice if you have a slip on or full exaust "
Overall:
4 out of 5
4 out of 5
Location: harrisburg PA
bare minimum.
" kit has like 4 main jets 1 needle jet and an adaptor. and its only the stage 1 kit for mostly stock bikes. "
Overall:
4 out of 5
4 out of 5
Ease of Installation:
4 out of 5
Ease of Installation out of 5
Performance:
4 out of 5
Performance out of 5
Location: San Jose, CA
Decent Buy
" This kit helped me jet my '05 yfz450; I have the motoworks full system, power now kit, boyesen qs2 and the modquad air filter. I had to use the fattest jet the came in the box but it worked. "
Overall:
1 out of 5
1 out of 5
Location: Algonac MI
Useless
" The stock jet in my 450 was a 120. This kit came with a 120, 122, 124 I am currently using a 155 "
Overall:
5 out of 5
5 out of 5
Location: Not Available
FMF Jet Kit
" awsome upgrade, great buy! easy upgrade takes no time! "
Overall:
5 out of 5
5 out of 5
Location: Newark,OH
Good Product
" installed on my 2005 450r no problems with install, quad runs great! "
Overall:
4 out of 5
4 out of 5
Ease of Installation:
5 out of 5
Ease of Installation out of 5
Style:
4 out of 5
Style out of 5
Durability:
4 out of 5
Durability out of 5
Performance:
5 out of 5
Performance out of 5
Location: Indianapolis, IN
BEAST!!!!
" I have a 2004 yz250f with fmf megabomb header and powercore 4 silencer. stock air cleaner. works great with what the instructions said to do "
Overall:
4 out of 5
4 out of 5
Ease of Installation:
4 out of 5
Ease of Installation out of 5
Style:
5 out of 5
Style out of 5
Durability:
5 out of 5
Durability out of 5
Performance:
5 out of 5
Performance out of 5
Location: Pottsville, PA
" it works good but i wish it had a bigger main jet included "
Overall:
1 out of 5
1 out of 5
Location: Plainfield CT
FMF Kit
" OK heres the deal on this. If you get an FMF pipe this may work for you, however if you jet your DRZ based on ThumperTalk and Eddies suggestions, this kit does not have the correct jets. There is NOTHING that can make your DRZ run as good as Eddies suggestion. I had to return this item. "
Overall:
2 out of 5
2 out of 5
Location: Nooksack, WA
SO SO
" I purchased this kit to jet my 04 CRF450. It has a 490 kit. The main jets only went up to 155. They are also not interchangable with the stock jets. The kit comes with an adaptor for there mains to work. I was riding at the Glamis sand dunes, and needed more adjustment. They have numerus vendors at the dunes, and no one had any jets that would fit the adaptor. I had to raise the needle and run it easy. It wasent much fun. "
Overall:
4 out of 5
4 out of 5
Location: Ft Worth, TX
Good jet kit
" This was a nice jet kit the only down fall I would like for it to have bigger jets. I have the biggest jet in the kit installed and I think I may need to go bigger. If you just have the exhaust and no air box lid then you might be ok. If you are above 3000 feet this will be the perfect kit for you. Wish it would have came with jet sizes 170, 175, 180, 185, 190. and not the smaller sizes. "
Overall:
5 out of 5
5 out of 5
Location: Nashua NH
Works awsome
" Has everything you need to re-jet. I installed the kit did alittle tuning, took it for a ride and felt the extra power. Great product. "
Overall:
4 out of 5
4 out of 5
Location: Omaha, NE
" Love the performance it helped the bike gain. the only problem was the directions were a little slim. they needed to be a little more detailed. i was confused due to the way the needle installs. the stock and aftermarket needle install differently. but overall the kit was well worth the money. "
Overall:
2 out of 5
2 out of 5
Location: Fargo ND
Didnt go rich enough
" Easy to use product but just didnt get rich enough for my 04 YFZ 450 with Yosh pipe. "
Overall:
4 out of 5
4 out of 5
Location: butler, PA
expensive ,but it works.
" too much money if ya ask me. it took alot of foolin around. i had my carb off like 20 times ,but when i got it rite it worked great. i got a 08 ltz400 with a yoshiurma pipe & k&n filter & lid. stage 2 accordin to fmf is a 160 jet & 3rd click on the needel ,but it wasnt enough fuel i used the 170main & 3rd click on the needel. great power gain! just too expensive! "
Overall:
1 out of 5
1 out of 5
Location: pa
" this jet kit sucks it cost way to much for what you get and it takes forever trying to get it to run right "
Overall:
5 out of 5
5 out of 5
Location: Ft.PIerce FL.
" A must have for any pipe upgrade or air filter. Easy to follow directions from how to install to final setting. "
Overall:
4 out of 5
4 out of 5
Location: Yreka, CA
" A little expensive for what you get but if an aftermarket pipe or varying altitudes are in your future like mine you need a jet kit. "
Overall:
3 out of 5
3 out of 5
Location: maine
" good product, a little high on the price. should come with pilot jets also. the E-clip wasn't very good, when i went to move the clip it broke. luckily my stock one fit. but other than that it worked good "
Overall:
5 out of 5
5 out of 5
Location: Not Available
" Good jet kit, comes with different sizes so you can get your bike running just right. A little bit too much on the price tho. "
Overall:
5 out of 5
5 out of 5
Location: LaGrangeville, NY
Great Customer Service & Prices
" Through the years I have ordered many things from Motosport either on-line or the phone. The customer service guys are great and so are the prices. My son & boyfriend race motocross and always seem to need something. The prices are much better than our local motocross store.The delivery time is also fast. You guys always seem to have what they need. I recently ordered an FMF power up jet kit, which works great by the way. Thanks, Linda "
Overall:
5 out of 5
5 out of 5
Location: Dublin Ga
good stuff
" Jetting is a must for anyone seeking to get more power out of their atv.when combined with a good air filter power gains will be noticed! FMF also includes easy to follow directions if you want to install jet yourself "
Overall:
5 out of 5
5 out of 5
Location: Queen Creek, AZ
EasY!!!!!!
" Very simple directions to put on and very nice power upgrade!! goes good with fmf exhaust system "
Overall:
4 out of 5
4 out of 5
Location: West Point, IL
A very good buy for the alright 07' YZ250F.
" With my kind-of boggy 07' YZ250F, I needed a little more. With this FMF Power Up Jet Kit, my bike ran more like it was supposed to. It didn't run like a 2-stroke anymore!! Had increased horsepower with lots better corning power. "
Overall:
5 out of 5
5 out of 5
Location: Hanford, CA
great
" befor i had this i had a HMF pipe and a K&N air filter and my bike was running way to lean then i got this it made a huge differance its great. "
Overall:
4 out of 5
4 out of 5
Location: Atascadero, Ca
Bbbrrrrppp!!!!!
" Great with FMF system. Got it running perfect and also comes with differenet jets for specific altitudes. "
Overall:
5 out of 5
5 out of 5
Location: N.Michigan
great power
" Comes with every thing you need. bike runs better and pulls harder. "
Overall:
5 out of 5
5 out of 5
Location: BEL AIR, MD
" A must have. Works great along with my fmf factory 4.1 exhaust. Big power gain. "
wil this work if i have a pro circuit pipe?
Asked by fmx440, maine
not just made for fmf exhaust. simple jet kit u install and play, get your jetting right and rip on it.
Answered by endo, marysville, ohio
Yes, Carburetor jets are the same.
Answered by james718
will the fmf power up jet kit work on a all stock 2002 honda 400ex fourwheeler?
Asked by itpholeshot, Milan
Yes it will...
Answered by Drewski, Portland, OR
will this work if i have a white brothers exhaust system?
Asked by mxryda77
Yes this will work with any brand exhaust.
Answered by racer3114, PDX
are these the jets for the sst pipe
Asked by zachmo
Yes these jets will work out just fine for that pipe.
Answered by Drewski, Portland, OR
What exactly comes with this kit for a '06 YFZ450?
Asked by 1fastturtle, Fresno, CA
All necessary jets for most circumstances. Also they have special needles to help tune in throttle response.
Answered by james718
if i replace my piston and exhaust do i need a jet kit?
Asked by mx47
You'll need a jet kit for the exhaust but not for the piston.
Answered by Drewski, Portland, OR
Does this kit come with leak jets and if so what sizes?
Asked by r1crewser523, Maryland
No, this kit includes just the main jets and the needle. Leak jets are not included.
Answered by Drewski, Portland, OR
What size of jets come with this kit for a 06 trx450r
Asked by Emasterfresh, New kensington, PA
Included jets will be enough to cover a multitude of different possibilities. FMF doesn't list the exact size jets without having the product in my hands. That's unfortunately impossible as these packages are sealed and our warehouse is over 2,000 miles away.
Answered by james718
Does this kit come with pilot jets also?
Asked by lilbeckk
No, pilot jets are not included.
Answered by Drewski, Portland, OR
Would I need a jet kit for a hot cam
Asked by shockg80
If you think the bike isn't getting fuel than inspect the jets to make sure they are not clogged. I would figure out why the bike isn't starting before buying parts, if you're unsure.
Answered by james718
Woul this kit be appropriate with more modifications...
Asked by MJSandDiego, san diego
Yes, this kit will work out just fine.
Answered by Drewski, Por+land
would the FMF jet kit go good with any exhaust
Asked by
You can use the FMF jets with any exhaust.
Answered by Drewski, Por+land
Do I need the pilot jets to jet my blaster or can i jet it right out of the box and ride?
Asked by eatit
This jet kit will include all necessary jets for any type of modifications you do the ATV.
Answered by james718, Portland, OR
will it work 4 my machine?
Asked by yamahaman1
Yes this jet kit will work
Answered by Drewski, P+RTLAND
Is this a good idea for a highly modded 400EX ...
Asked by Ebol, Alaska
If you're having some issues with the carburetor I'd suggest this, but if not this wouldn't give you any additional power.
Answered by james718, Portland, OR
will i need to
Asked by ryano1993, kentucky
This will include all necessary jets to accomplish better performance.
Answered by james718, Portland, OR
yfz 450 and hmf pipe
Asked by BDav, New Orleans
This jet kit will work with your quad. This kit offers a wide variety of options to dial in the performance.
Answered by james718, Portland, OR
is there a 170 main jet in there?
Asked by mushroom
since FMF makes this kit for many makes and models we would need to know what model you are asking about.
Answered by JesseC, Tualatin
I have a 05 yfz450 with a air filter, factory 4 exaust, megga bomber and its jeted. Will this jet work on my atv??
Asked by motox678
If you're still running the stock OEM carb than yes this jet-kit will work.
Answered by james718, Portland, OR
i have a 2001 blaster wil this jet kit work good on my quad i changed up the gears also
Asked by tsamp, maxwell IA
Yes this will work on your quad, gearing doesn't effect the jetting at all.
Answered by Drewski, P+RTLAND

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