need info for stock FCR carb settings

I'm waiting for my Clymer manual to arrive by snail mail. In the mean time I'm trying to figure out why my 2001 DRZ is not running right. I bought it used from a guy who didn't ride it much and he said he just had a mechanic go through the Carburetor. The bike starts hard and when it does get warmed up it won't idle, well it will but at a very high rpm. I noticed a couple of times I could get it to drop in idle if I let the clutch out a little. As soon as I bliped the throttle a little it would stick high again. I have the carb off already and I want to check the stock setting my self and clean it as well. Any thing I should be looking for for these symptoms.

What model DRZ? E? and yes, that hanging idle is typical of lean jetting.

stock pilot jet is 45. set the fuel mixture screw out 2.5 turns and try that.

Look for any vacuum leaks and cracked hoses.

Yes its a 400E with a flat side carb

Thanks for the info I'll try the settings you said. If I need parts for the carb can you recommend a good rebuild kit and where to get it.

There are not really any rebuild kits. You just buy individual parts from Suzuki. Some parts you can buy from SUDCO but they have a min order. There are "jet kits". The only one I recommend for the DRZ400E is JD Jetting. Or you can buy individual jets as needed.

Stock settings:

main jet 142. go bigger if the air box and/or the EX is modified. 160 is a good starting place.

pilot jet 45. Usually 45 or 48 works in that carb

Needle OBDXP-4. Move the clip to -5 on the stock needle (from the top)

mixture screw 1.5 turns. set it to 2.5 turns

main air jet 200

Pilot air jet 60

CE air jet 90 If you remove the CE there are various options. PM me if you need more info on that.

Float 9mm +/- 1mm

Check return throttle cable for fray at the carb

Oh yea, And if somebody else has worked on the carb, check to see if the throttle plate is in upside down. As you look into the the carb and raise the slide, light must be in the center. If there is light at the sides of the slide, it is upside down. Also this carb must never be immersed in solvent type carb cleaners. There are non replaceable rubber parts in the assembly that can be damaged by harsh cleaners.

thanks for the help with the stock settings. I adjusted the carb today and found the fuel mixture screw to be set at 1 1/4 turns. I opened it up to stock 2.5 turns and it runs great now. I just have a slight leak in the bowl. I'll torque the screws a little. Thanks agian

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.