tjamscad My Ride Posted March 24, 2010 I see several different Jet kits for the DR-Z 400. I can't think of what make one better than the other. Please explain why the JD kit is $75 and the FMF is $49. Whats the difference? They are all made from the same materials. Is there something that makes one better than the other? Share this post Link to post Share on other sites
roggiedog Posted March 24, 2010 I see several different Jet kits for the DR-Z 400. I can't think of what make one better than the other. Please explain why the JD kit is $75 and the FMF is $49. Whats the difference? They are all made from the same materials. Is there something that makes one better than the other? You're right, they are all made from the same materials, but it's all about the shape of them. Sorta like the difference between Rosanne and Kim Kardashian. 👍 Share this post Link to post Share on other sites
Wayward Son Posted March 24, 2010 jd kit vs dj kit- jd has 2 needles,dj has 1. jd has 25 pilot jet,dj does not. otherwise,yah same materials. either works. Share this post Link to post Share on other sites
tjamscad My Ride Posted March 25, 2010 What are the JD 2 different needles vs. the one from DJ? Why does the JD have a pilot jet? Do most bikes need a new pilot jet? Isn't the pilot jet just for starting? Are the Moose and FMF the same exact kit as the DJ kit? The DJ kit has different stages. Why how do you know which one to get? I have the DR-Z Kick start only do Is it the same carb as the S,E bikes? Share this post Link to post Share on other sites
spokis Posted March 25, 2010 No. You have the old style fcr slant body JD is the way to go Also search about the Eddie mod (fixes off idle bog - ) Share this post Link to post Share on other sites
jbrooks26 Posted March 27, 2010 The two needles have different tapers to allow for more accurate tuning. You are not going to notice much difference at your level of riding. I would recomend purchasing about 2 main jets on both sides of your stock, and the same for the pilot jets. You won't need to do anything other than adjusting the stock needle for now, but you will need the Mains adn Pilots if you are ever to change elevation much or if we get into some real humid riding around T-Town. We can play with it a bit. You will definately benefit from a replacement fuel screw similar to the ZipTy. Share this post Link to post Share on other sites
tjamscad My Ride Posted March 30, 2010 thanks jbrooks26, that answer satisfied the engineer in me. i ordered the new throttle stop and fuel screw Share this post Link to post Share on other sites
