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.
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?
Similar Tagged Content
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?
Hi, I have a Big Bear 400 that Im working on for a friend. It starts, runs for a bit, then suddenly stalls. It will do it if its idling, or if Im driving it. The longest Ive gotten it to run is about 20 seconds. It will start back up after a few pulls (battery is shot, waiting for a new one to come it) but then will stall again. Does this sound like a carb issue or is something else going on? Thanks!
This is my first post...
I have a 2004 Outlander Max XT that stalls out above 900 feet (yes, 900, not 9,000'). It progressively gets worst the higher you go.
I have consistently returned to the same location / elevation and it always "acts up" above 900' and gets worst up to 1,900'. I have cleaned the carb and replaced most all seals & jets with a rebuild kit.
When it happens, I am completely on my own. It will not start again without a 1/2 hour+ wait unless...
I can sometimes manage to temporarily get it running in short (15 second - 2 minute) bursts by:
1. Draining the carb
2. Waiting a few minutes
2. Spraying starter fluid into the carb
3. Starting it, then slamming it into gear
4. Going like heck (wide-open throttle)
5. If it starts, it will then give me a short burst until it succumbs/stalls again
6. Repeat until I drop below 800-900', then it runs fine
I was thinking of putting in after-market jets, but I would rarely go above 2,000' around here and possibly up to maybe 5,500' in other parts of the state (Alaska). So I am here at this forum looking for a few suggestions.
FYI - I live at sea-level or there-abouts and there are no dealers anywhere close.
Thanks for your time.
I have a 1999 Kawi Lakota and am having problems with it running.
To get it running i usually have ot have the choke lever all the way to the left (i assume open al the way) and once it starts I have to leave it running for a while 10 mins then can usualyl close the choke a bit and it will continue to run and idle ok.
When out riding the trails it does stall a lot but usually will start again and I can continue to ride with no real problems. THe issue seems to be after riding for sya 1 hour if i let it sit for maybe 20 -30 minuets - it gets real difficult to start, it sputters and backfires and stalls out.
I got the bike used and when I tested it it ran good but when I got home it gave me the problems i described. My friend put smoen premium gas and sta-bil and we went out riding. It ran good on the trails - there were some some stalls but most likely it was me. When we were done riding we clean the bkes up but after cleaning it up I tried to run it again and it just would not run - got he sputters and backfiring and stalling.
Any ideas what it could be and how to fix is greatly appreciate- I am thinking its the carb but not too sure.
Recently Browsing 0 members
No registered users viewing this page.