2009 suzuki king quad 400 (LT-F400/F)- Carb Help

[Bruce.wright]

I seem to be having a fuel issue- I have no throttle response or when I do as soon as I give it power it dies out. I put a carb rebuild kit in it- cleaned it out. Still nothing. I am thinking I have a setting wrong with the carb maybe one of the valves need to be screwed in/out abit more. Cant find any valve settings for the carb. Any ideas or know of a service manual for it that I can download? I didn't see one of the service manual spot on the site.

Edited August 5, 2017 by Bruce.wright

[davefrombc]

There's a  service manual  in our  downloads section.  To  find the  Suzuki  manuals  and others, click  on the (and 9more) under   the ATV  service manuals to  open  a  list of  makes. 

Here's  the   link  to   2008 model  which should  be the  same for your 2009.

 

[Bruce.wright]

Thank you ill check that out. this issue is a pain in my butt

[davefrombc]

It  may be  just the  idle  air screw  is set a  little  too  lean , try turning it  out   a 1/4  to 1/2  turn  and see  if improves before  digging deeper  into the  carb  again .. Most start  from  1 1/2 to  2  turns  out from seated  and then  adjust   1/4  turn  at  a time in or  out   to find  the sweet spot .

[Bruce.wright]

I thought that as well but this carb doesn't have one. Or I am just dumb and don't see it

[Bruce.wright]

it idles perfect in neutral, but when I give it any kind of throttle it dies out on me 

[davefrombc]

If it is  running too lean  at  idle , it will do that when you  give it throttle..  On carbs that have  an accelerator  pump, if it doesn't work  right  it  will  also  bog when   you  go to open  it  up .. It  can  idle  fine  and still  be too lean   to  catch  when  you  open  it  up.  It will  stumble.  Try  giving it  a 1/4  turn  out  ans see if it  helps.

If it  idles fine  and refuses  to  rev up  at  all,  then  most likely  there  is a plugged  jet  or  passage .   You  might also  double check the  float setting.  If it  is not allowing  the  float bowl  to  fill to the  proper level     it  could  also  not  want to  rev above an  idle ..   Simplest  first .. Try  the   idle  air  screw,  then  if  no  go  look  deeper.

Edited August 5, 2017 by davefrombc