Quantcast
Jump to content

  • Do you own an ATV? Join our Forum!

    As a member, you can post in our forums, upload your photos and videos, use and contribute to our downloads, create your own member page, add your ATV events, and even start your own ATV club to host your own club forum and gallery.  Registration is fast and you can even login with social network accounts to sync your profiles and content.

po_hara

Suzuki 750 Kingquad AFi stalls on take off

Recommended Posts

Hi, sorry I'm new to this so not sure if I'm doing it right!

I'm from Ireland, recently bought a 2009 Suzuki 750 Kingquad AFi and having a small issue (at least I hope it's a small issue!!)

When I start the quad, it fires up, revs etc all as it should, but when I put it into gear and give the throttle a jag it stalls, if I give it the throttle very gentle, it revs up but does back fire slightly and moves off fine!

The battery was bad in the quad and I changed that, thinking that the pump wasn't getting enough power for injection and I also replaced the spark plug and cleaned out the main fuel lines. It's definitely better than it was, but does still cut out at times! Once the rev gets up and I'm moving on, it runs like a dream.....flying machine! If I come along the road or fields, and slack off the accelerator to about quarter then throttle on, the quad picks up and away like it should, but when I go back to idle / low rev, I have to give it a lot of throttle to keep going, if I go for a small rev to maybe turn around or run up to a gate, it has a habit of stalling or back firing abit!

Is there anyone who could suggest anything I should do / have missed, etc?

Share this post


Link to post
Share on other sites


Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Similar Topics

    • By Aleksandr Boreesenko
      doesn't idle at times but sometimes when it does as soon as I touch the throttle it just shuts off, what could possibly be the problem? I thank you very much for any help, Thanks.
    • By bradleyheathhays
      Just now rolling over 100k miles. Been feeling some steering weirdness so I get one front wheel up in the air and push at 3 and 9 and sure enough there's some wobble. Pushing at 12 and 6 gives no play at all.
      Although I'll probably be replacing the worn part myself I need some help diagnosing what all might need to be replaced. And since I need an alignment anyway I've made a deal w/ my local Goodyear tire shop to do a pre alignment inspection and identify my bad part(s) so I can replace them before they do the job.
      When I drop the car off what specific parts should I ask them to look at? I'm sure tie rod ends but what other kind of worn parts could be causing movement on the 3-9 push test?
    • By wwdubose
      I have two 2003 Suzuki Ozark 250s, both 2-wheel drive.  Last time we rode them about a year ago, the red one was not running well, didn't want to idle, backfired a lot.  The green one ran fine. 
      Fast forward...I ordered a carb kit for both of them, thinking the red one has some trash in a jet.  Both of these ATVs have had little use and I've always ran the gas out after use (put an inline cutoff valve in gas line).  I pull started the red one to verify it was still running bad.  It will start and idle, but as soon as you give it any throttle, it dies instantly.  Give it a little choke, dies instantly.  Took the carb apart and it was spotless.  Went ahead and cleaned all the holes with carb cleaner and blew everything out with compressed air.  All new jets, main jet holder, and needles.  Put it back on and nothing changed.  Starts, idles (not for a long time), but dies as soon as you give it gas.  Same happens when you put the choke on.  It does the same thing when I try to run it turned to prime on the petcock as it does in the on position.
      Not an air filter issue.  It is clean and it does the same exact thing with no filter on it.
      Thought maybe there was a float issue or maybe a damaged diaphragm, so I took the carb off the green Ozark and put it on red.  Started up and initially ran normal and revved for about 10 seconds and then started doing the same exact thing.  Starts, idles (not for a long time), but dies as soon as you give it gas.  Same happens when you put the choke on. 
      So...not the carb
      Thought maybe vacuum petcock was bad, but there's no gas in the vacuum line going from petcock to carb and gas flows freely when on prime.  I even plugged the vacuum line at both the petcock and carb end and tried to run it with valve set to prime.  Gas flows freely, but does exactly the same thing.  I unscrewed the screw at the bottom of the bowl and gas flows thru carb and out bowl drain line when petcock is set to prime.
      So, I'm assuming petcock is good?
      Checked spark plug and it wasn't fouled.  Reset gap, didn't help.  Will swap plugs between Ozarks tomorrow but I don't think that is it.
      Anyway, that he history and now you're all caught up.  Scratching my head.  Valves? These were bought at same time and have had little use.  Suggestions?
      Thanks!   
    • By amharrison24
      i have a 91 moto 4 100. has electric start only. for as long as i could remember we have always pushed start it. after riding for while you shut it off. you are able to hit the start button and it will start right up. anyone know where i should start with fixing this issue? im fixing it up for my niece. thank you in advance.
  • Similar Tagged Content

    • By Devin Heffelfinger
      Howdy
      So my stock 2017 750 KQ came with Carlisle AT489 Bias Tires
      On Amazon these seem to have excellent reviews although the thing I here the most cumulatively on the forums is the first thing to change is the tires. 
      Are these tires all that bad? They seem to be holding up nice and i go on some pretty serious black diamond trails. Granted this is my first ATV purchase and i don't really have anything long term to compare these to. 
      Please lace me up if im missing something here because if buying a new set of tires will increase performance - reliability- comfort - im all for it... Also if you guys could recommend some tires for the trails I'd appreciate it. I don't mud and don't plan to if that helps narrow down the search.
    • By Jers
      I need to know what I have and what tire really go on it, Mine has 24x11x10 on the back and 22x8x10 on the front and I need new tire but I don't think are the right size. Also I can't find the model number listed but it looks like a 250 quadrunner 2wd and I think it is a 1987 maybe, can anyone help me, also I it has a rich running sound and I put a carb diap in it and cleaned the carb. is there a jet needing replaced?
    • By oleskool
      have an 05 750, and she bangs out when you give it gas.
      Idles fine. Also the belt light is flashing, even after a new belt was put on.
      Any ideas?
    • By Steve1266
      I went out to ride my quad today. When I started it up it ran for a minute, then died. Since then it will turn over but won't start. I've check the spark plug and get great fire. I have had this quad for about 6 months, and very new to breaking it down. But need help. Thanks
  • Recently Browsing   0 members

    No registered users viewing this page.


×
×
  • Create New...