Good Morning,

Anyone have any experience with a JD Jetting kit?
I'm looking at getting one after I freshen my motor with a new piston.
Worth the bucks? Is there alot to be had from changing from the stock jetting or are the gains minimal?
I realize I can't expect to a huge increase in power, but if it cleans up the jettnig and makes it crisper that would be worth it to me.

Thanks.

Kent.P

I put one on my 05 and it made a night and day difference in throttle response and overall power. I highly recommend them.

frdbtr said:

I had one for my 04 then took it off and sold it. At the time I was racing a lot and looking for the most performance. But I decided I really just needed to twist the throttle harder and longer. My bikes are stock now except for suspension and comfort items (bars, foot pegs).

skthom2320 said:

I am not a jetting guru, but you have to admit that jetting is important for overall performance of a bike. When I bought mine, I had 2 choices, I could try to figure out jetting with stock jets, or I could buy a JD Jetting kit and use someone elses knowledge and previous research to help me jet it instead. I feel like I made the correct choice since my plugs look really good and I am very happy with the crisp feel of my bike. I am also at 4500 feet above sea level so I probably feel the effects of jetting more then someone would at sea level. Anyway, to each his own. I had a positive experience with mine so I shared it.

the JD kit really helped my 02, but i didnt notice that much of a change on my 07. The jetting on the 07 was almost spot on in stock form it just took a little air screw adjustment to fine tune it. I ended up selling the JD kit and going back to stock jetting. Each bike is different and elevation and temp will dictate if changes need to be made.

dav said:

This is common. The earlier bikes really responded well to the JD needles. The later model bikes had a better needle to start with.

The kit really woke my 06 up. I definitely felt the improvement in overall power and throttle response.