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Blais Racing KTM 400/ 450/ 530 XCR/ EXCR Factory Jetting Kit


4.6 average, based on 8 reviews

Manufacturer: Blais Racing

Product Information

Blais Racing 2008-2011 KTM 400/450/530 XCW/ EXC Factory Jetting Kit. 

Get the best Jetting setup for your bike here.  This kit is dialed!  This is the same setup we use on our Company Race Bike and it is more spot on than anyone else's kit.  Get the same kit and jetting that factory KTM uses on their bikes.  These are all OEM parts including the needle.  Blais Racing and the factory teams use jetting components that are made by the OEM manufacturer.  The key to this kit working great is the Emulsion Tube which we modify to clean up the way your bike runs.  We don't have the fancy packaging like everyone else but we only sell what works.  We race what we sell here at Blais Racing Services.

Full Money back guarantee if you aren't satisfied with how your bike runs.  Combine this kit with our Emissions block off kit and you are ready to go.  All jetting sold as a complete kit only.
Kit Includes:
Keihin Needle (no clip)
Air/ Fuel Mixture Screw (Red)
Blais Racing Modified Emulsion Tube
Keihin pilot jets-  Qty. 2
Keihin main jets- Qty. 3
O-Ring for Accelerator Pump

Product Code: KTMJETKIT530

Customer Reviews

[1]2>View AllAverage Rating: 4.6

Best out there

Bought a 2008 450 xcrw from the original owner with only 44hrs, was so stoked. Had a JD kit blue needle and full fmf, ran ok. Just installed this kit, 185 main and 42 night and day difference. Starts like a fuel inj bike. Words cannot describe what a difference it made. Thanks again

Ethan Thornton :: 17 Jul 2015, 19:47


Chris, Put about 40 miles of mountain trails on it today at about 9k' elevation. Your jet recommendations for 3-6k' worked great even at the higher altitudes. Significant improvement over previous owner's jets and needle.

Albert Lowe :: 24 Apr 2015, 20:38


I did a 35 mile loop yesterday. The new jetting made an unbelievable difference over the JD Kit. There is absolutely no comparison to the way it ran before and now. Thanks for your expertise!

Forest :: 3 Sep 2013, 22:53

This Is How A New Bike Should Run!

I bought a brand new 2009 KTM 530 XC-W one month ago - April 2012. I Found it on CycleTrader & had it shipped from New Jersey to Salt Lake City, Ut. - Elevation 4200 ft. I kinda got carried away on this but read on, hopefully you will appreciate what I have to say and find something of value for your application. The difference between an uncorked (Desmogged)bike and a corked(Smogged or OEM) one is like night and day - you just cannot believe what a difference it makes. I love riding dirt bikes because of the Freedom, Adventure, Challenge and sights to see. On a Dirt bike you can cover alot of ground in a short time, I can say with absolute certainty that it is very necessary to get the Jetting on any bike correct for the elevation you are riding. If not, your bike will be under powered, will run hot, and you will be constantly fighting it. Do the right thing and get it jetted correctly and open up the exhaust system which will allow your bike to realize it full potential. Now on to my bike - so I started it up after unpacking and it did run, but backfired alot and also ran quite hot. I also have a 2005 Honda XR650 R. which has been impeccable. I bought it new in 2009 also through CycleTrader and had it DESMOGGED and Jetted. This bike has been superb, the cooling system works so good, never overheats and has tremendous low end Torque for the trails and deserts. The one bad aspect of this bike is the weight - around 277 lbs. dry. So i knew very well how this new KTM should run and what to expect. I read the review of the JD Jet kit also the reviews for this kit which appeared to be more favorable than the JD so I bought this one. I also bought the SMOG BLOCK OFF KIT, and the SAMCO Radiator hoses, which removed a Thermostat that was on one of the hoses. I cannot understand why KTM would put a Thermostat on the bike?? END RESULT: This kit was perfect for getting the jetting done right for my altitude. The instructions were pretty good, but it would be helpful if the pictures were a bit better. The kit did exactly what it was supposed to do. This bike is now fully opened up and runs very well, it has alot of power and torque very similar to the HONDA XR650 I noted above. this bike is about 25 LBS less weight and so I have noticed a huge difference in the handling. LASTLY MY THOUGHTS on off Road riding and a couple things I have noticed: I have been riding now for over 35 yrs and ridden alot of dirt bikes over the years, in the deserts and mountains of Utah. The Variety of terrain in this State is remarkable, I have ridden many single track trails to high mountain elevations of 10,000 ft. to the West deserts of Utah and deserts of southern Utah such as Moab, Ut. Many people have likely heard of Moab. We are always looking for single track trails which are diminishing. ATV's can easily turn a single track into a highway and as a result take away the challenge by widening the trail grinding it down considerably. Nevertheless, the environmentalists view all off road vehicles the same SO WE ALL MUST BE CONSIDERATE of the trails, be conscious of our environment, STAY ON THE TRAIL , and clean up after ourselves!!!!!!! If we all work together on these areas, the future will be good for future generations of riders, If not I really do Fear the Environmentalists will get their way and we will see off road road riding of all types become diminished or completely eliminated and none of us want this - - Right?

Brett Dawson :: 29 Apr 2012, 23:18

Awesome Jet Kit

The 530 runs fantastic. It runs like what I thought I was buying but was not there at all in stock trim. I only had time to do the same run, from my house to the dam at silverwood. The bike runs at a much lower temp and the engine has great low end and since I am just operating on the first few hours, I am not running it to full throtle. It starts like a street bike now, no drama, just like you said, a few turns of the throtle and no choke and I am up and running, thanks for the help and I am sure I will have some real fun on that bike.

Bert Schramm :: 5 May 2011, 16:14

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