2000 KQ Stalling

ajl719 · 08-26-2010, 11:16 AM

Hey all. Recently my 2000 King Quad has been stalling out in 5th gear these last couple years. Worse this year then the previous. It usually happens between the speeds of 50km/h to 70km/h. Though it doesn't happen all the time, it seems worse when it's hotter out. Usually the problem arrises after about 5 to 10 minutes of driving at a constant speed. Though i've also tried alternating speeds too, that doesn't seem to remedy the problem. My symptoms start with mild power loss, followed by sputtering, then moderate to loud backfiring, and finaly stalling out. I am at a loss and not sure what the problem is. Any help would be greatly appreciated.

__________________________
2000 Suzuki King Quad 300 4x4
K&N Air Filter
2300 lbs Superwinch
Kenda Bear Claws
12,000km/s

mehoe · 08-28-2010, 09:05 AM

My 2001 king quad was having the exact same problems for the past couple of weeks. It took me a while to figure it out I checked everything couldn't find the problem. So since I am not a master mechanic I decided to take the carborater down to my local mechanic, he took it appart. The problem
was a inch long piece of the rubber gas line jamming one of my needle valves. He got that fixed and professionaly cleaned it now it runs like brand new.

Drewzuki · 09-10-2010, 01:05 AM

Quote: Originally Posted by mehoe

My 2001 king quad was having the exact same problems for the past couple of weeks. It took me a while to figure it out I checked everything couldn't find the problem. So since I am not a master mechanic I decided to take the carborater down to my local mechanic, he took it appart. The problem
was a inch long piece of the rubber gas line jamming one of my needle valves. He got that fixed and professionaly cleaned it now it runs like brand new.

even b4 reading your reply i said to myself "wow, sounds like the carb is starving"

How did rubber line get into the carb? our quards are not that old that the lines would be falling apart like that.... strange

ajl719 · 06-13-2011, 01:10 PM

O.k, well I'm still having a stalling issue with my quad, seems worse now then before. Never really noticed it yet this year since it hasn't been all that hot out but today it's a fairly hot day out and i stalled out. (Twice)

Today i was hauling a 5X7-1/2 trailer with grass clippings in it. Usually a easy task for the KQ, but while i was hauling the trailer i stalled out only 3 minutes into my haul. Thing is i was in low range and only going 20 kph in 3rd before i stalled out at the top of a slight incline in the road. I started her back up with slight throttle and it was rough sounding for a few seconds but smoothed out after 5 seconds or so. So the rest of the trip to where i had to dump my grass clippings was fine but on the way back i stalled out yet again. I was like what the hell, i had an empty trailer except for a tarp, broom, and a shovel in it. I was baffled why this happened this again as i was going even slower this time around and i still stalled out. ( Low & 2nd Gear) Once again i started her back up with slight throttle and she sounded rough again for a few seconds then smoothed out.

This problem is starting to get really annoying and worry some. I got the dealership to check the problem out last year and they couldn't find anything wrong with my KQ. They told me they cleaned the carb and checked the valves and all was good. They did suggest however if the problem continued though that i might wanna try and change the fuel pump and the fuel petcock if the problem persisted. I am at a loss of what to do and i don't really have the funds right now to get more repairs done to my bike since i just spent 700$ about a month ago on drive axles. Looking for any help in pointing me in the right direction of what this problem could be.

TUBBYTUBB · 06-13-2011, 01:23 PM

Have you looked at your plug, depending on color it will tell you if you are running lean(fuel pump needs replacing/carb needs to be enriched) or running rich and you just need to adjust the idle air screw a little. Does this only happen when it is warm out? if so a carb adjustment will probably help you because when I rebuilt my 1997 last year it was still a little warm and when I set the carb I set it for that temperature but when it turned cold the first couple of rides I was having a similar problem and turns out I just needed to adjust the carb because temp will directly effect fuel atomization and air requirements for your engine. Sorry for long post again but wanted to make sure I explained it well enough.

THOMAS

ajl719 · 06-13-2011, 01:35 PM

I haven't checked the plug in a while Thomas but I'll check it tonight and post back. I'll be heading off to work very soon so i don't have time right now but I'll do it the first chance i get tonight. And I've never realized it if it does it during winter cause i don't really use it since there is nowhere to go. Though i did use it last fall at hunting season and i never remember it doing it at all then. Anyways, i will check the plug and let you know. Thanks for the help. And oh, no worries about the long post, the longer and clearer the explanation the better.

TUBBYTUBB · 06-13-2011, 02:16 PM

That would make sense especially if it is set for the cold then when it is warm out it would cause issues. Looking forward to knowing what the plug looks like.

THOMAS

ajl719 · 06-13-2011, 05:39 PM

Alright Thomas i took the plug out and snapped a pic for you to take a look at. But to my surprise when i took the plug out i had a NGK DR8EA in there instead of the standard NGK DR7EA plug they say to use. I know in my owners manual it says you can use the NGK DR8EA plug if your standard plug tends to run hot but for some funny reason i don't remember putting the DR8EA plug in. Though i did change it last year sometime i think and i might have grabbed the wrong one who knows. Maybe this is the source of my problems. Wonder if the DR8EA plug could be causing my problem. Anyhow, here's the pic for you to take a look at.

TUBBYTUBB · 06-13-2011, 09:05 PM

Hey AJ I hate to ask you to but could you take a picture from a different angle I really can't tell to well on the tip color. Maybe if you could turn the plug sideways and get some good light on the tip that would help.
I don't think that you having a different plug in there would cause your problem but you could always swap it and check.

THOMAS

ajl719 · 06-13-2011, 11:18 PM

Alright Thomas, well i went out to a buddy of mine to play some pool tonight and i used the quad to go there. But i switched the plug back to the DR7EA and everything was fine with the bike going there but coming back was a different story. On the way back i was cruising down the street doing 25 kph and i could feel the bike hesitating a bit. I eased off on the throttle but it died on me again. This time however i couldn't get it started as easy as the few other times today. I held the starter button for about 6 seconds but all it was doing was just turning over but wasn't catching. I did this on and off for a good 4 minutes and was ready to call it quits and give my wife a call to come give me tow with the car home but i decided to try starting it with the choke on and it caught a bit but died right away. I started it again with the choke in the full position until it caught then played with the throttle and slowly moved the choke back to the off position and continued to play with the throttle a bit until it would idle on it's own. I managed to get home without a repeat of this problem but i am getting wary of going out any further with my bike until this problem is fixed in the fear of getting stranded in the woods.

Anyhow, when i got it into the garage i left it running and looked it over a wie bit and everything seemed fine but the exhaust manifold where it connects to the engine was glowing red somewhat and i wasn't to sure it that was normal. I checked over the rest of the exhaust and it appeared fine and wasn't glowing red at all. I am really at a loss and getting kinda upset with the problem. Not something i want to happen if I'm in the woods that's for sure. And i mean i can't even rely on my bike to get me across town anymore. So hopefully you'll be able to help me out Thomas.

As for the plug Thomas I'll take a pic from another angle for you that's not a problem. Let's just hope we can solve this problem. This is the first time I've ever had a problem engine wise with this bike since I've owned it.