Rev limiter MPH ?

After doing the 3x3 mod with JD kit and extended mixture screw awhile back , I now have had some good seat time and am really getting into ripping the snot out of my 2003 KLX 400 S. It has stock exhaust and gearing and no tach . I am at the point now that I can run through the gears very quickly , but at 41 MPH in first gear , and about 52 MPH in second ,she just stops acelerating and the stacatto sound described by others is heard. Are these the same speeds that others hit the limiter at with similar bikes ?. I just want to be sure that I'm not leaving anything on the table in regards to the jetting and settings. It pulls strongly up to that point , but seems to come up very quickly anymore.



41 in 1st? do have the bike geared?.....if you have trail type gearing your probably bouncing off the limiter....

It has stock street gearing. I just realized how dumb this post looks. I'll save you guys the trouble.OF COURSE its hittin' off the limiter. DUH.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Similar Content

    • By Markl5557
      Anyone’s air box smell like gas ? Is this normal ? Air filter is bone dry but it reeks in there .... I’m assuming cause of the carb being semi filled with gas ??
    • By Markl5557
      So I’m reading these horror stories of the stock vacume operated petcocks failing and letting gas into the oil .... how many of you guys switched over and is it worth it to switch to manual ?
    • By Markl5557
      Hey guys . I feel like I post here way to much lol 
      anyway after having my bike kn it’s side overnight to fix a cracked stator cover .... I come to find out that I also accidentally left the pet cock in the prime position .... constant gas flow to carb ... now my oil smells strongly of gas ... my question is ... was it the bike being on its side that made the gas get into the oil or the prime position on petcock that made this happen ? Or both ? I didn’t ride it much at all after discovering... I assume. I should drain the oil obviously but any other suggestions ? Always appreciated -mark 
    • By Praneeth143
      Hello guys , I have a suzuki drz400sm which is a 2009 model recently I purchased a rear sprocket which was a JT 41T , but I found that it did not fit to the rear sprocket hub of the bike and my drz has got the EXCEL TAKASAGO rims in it . How can I find one that fits and what sprocket brands and where can I buy it . I have attached pics of the current setup , please help me

    • By Surfman1
      Hello all, first time poster. Just bought this bike a few days ago it’s an 08 drz 400sm and am starting to notice it has a strange backfire at idle. I understand a little bit at decel might be normal, but at idle too?  It appears to have been jetted already, judging by the fact it has a jd jetting sticker on the bike itself. I know that it’s not an exact indicator it has but it could be. Has an FMF exhaust, it looks like a full system rather then a slip on but not entirely sure. A buddy recommended I mess with the air and fuel screw, haven’t done that yet. Just wanted to see if there was any other tips I should try.