JD Jetting kit/guide vs factory KTM jetting specs
Posted March 02, 2012 - 06:59 PM
Posted March 02, 2012 - 07:26 PM
I apologize if this topic has been hammered into the ground in the past but it is new to me. My understanding of the JD kit is that it provides you with all the jets & needles etc that you need to jett your bike properly but is the performance difference with this kit really worth the money? I Have an 08 KTM 300xc with factory cylinder/piston and FMF/KTM exhaust and have been pretty happy for the most part with the jetting specifications given in the manual. Of course I'd throw down the money if the JD kit provided me with better performance but I just wonder if it is possible to achieve the same performance without spending all the $$$. Any input and experience on the subject would be greatly appreciated. Thanks!!
The JD kit provides you with JD's specially tapered needles and main jets for multiple tuning and altitude scenarios.
It comes with basic instructions to get you on the right track.
For fine tuning, you still need a great deal of experience, or a AF meter and lots of time.
Posted March 02, 2012 - 08:34 PM
The JD kit provides you with JD's specially tapered needles and main jets for multiple tuning and altitude scenarios. It comes with basic instructions to get you on the right track. For fine tuning, you still need a great deal of experience, or a AF meter and lots of time.
I know what the JD kit is. What I'd like to know is whether it provides superior performance over a properly jetted bike with oem needles & jetts. Obviously there are those who have invested the money in it and will swear by it in order to justify spending the money on it. The KTM manual gives a good detailed chart as a starting point with jetting that seems to work well for me. How many of you have honestly noticed a major improvement in power delivery as a result of using the JD kit? Does it perform equally well on a 2 stroke as it does on a 4 stroke?
Posted March 03, 2012 - 07:41 AM
Edited by D0T-C0M, March 03, 2012 - 07:42 AM.