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Hey guys, figure you guys would have some helpful direction or answers.
So, 05 Sportsman 700 carb, new carb, fuel pump, new plugs, new air filter, new everything I can think of that is usually the running issues. Starts up fine, seems to run fine, but if under load, two people, or even one person, up a hill, or pulling a drag chain for the driveway, it starts to cut out and sputters and loses all power, until I back off on the throttle and just barely try to let itself catch itself and then I can take off again.
I am going crazy trying to figure this thing out. Other than that, the quad runs great. Parents bought bran new, just used around the property, 5000 miles on it. Any ideas???
Took a little ride around the farm today. It was good to get away from the TV, Politicians, and all around bad news. Only an hour or two, but helped recharge me. This is in Western KY on our farm. About 85 degrees today here. I will still get you guys a run down in the newer ohv and atv parks here in this end of the state. But not today I'm thinking of heading back out for a night ride later.
Good Morning All!,
After a significant amount of reading and tinkering, I'm stumped. We have a pair of Arctic Cat DVX 90s (4-stroke), and one of them runs very rich at wide open throttle. I've cleaned the carb (which was installed new last year), verified the main jet (80) to be per the original spec, installed a new air filter, tried a hotter spark plug (CR6HSA), and adjusted the valves (tightened a modest 0.0005" but improved starting). The hotter spark plug may have help just a bit, but not appreciably.
Just for fun, I swapped the CDI between machines, and that didn't help either.
Fouling plugs very quickly, but not to the point the machine will not run or start. [black instantly]
Logically, I assume I'm revving out, but the other machine doesn't "stumble/blubber" anything like this one.
Should I try a smaller main jet?
Any ideas you guys may have would be much appreciated.
Thanks in advance everyone.
By Jack Briggs
Just bought 06 KingQuad 700 and first ride out hit a mud hole, not to deep and it shut off and would not start.
Got it home and found the spark plug hole was full of mud and water. Went and bout a new spark plug and began cleaning it out. Put a deep socket in there and it wouldn’t grab. Took a pic with my flash and this is what I see. Any suggestions? And what is it??
previous owner said it had a new coil so that’s why I decided to change out the spark plug, also ordered new coil should be here by the weekend.
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Took my wolvy for her first trail ride past weekend. Got home and cleaned all the mud and dirt off. Went to take a spin around the neighborhood and started having issues.
When you are about 1/2 to 3/4 throttle the RPMs will sudden spike way up with little difference in power to the machine. Once you shift to the next gear it will increase power/rpm consistently then same thing happens and you get a sudden RPM spike. It also seems to recreate the problem if you are low in the gear and try to punch it...High rpm with no power increase. If you shift gears and gradually increase throttle she will increase power and RPMs consistently but if you shift and are more than 1/2 throttle it will increase power and RPMs fine until you get about 1/2 to 3/4 way through the gear then you get the same RPM spike...
Hope I am explaining this clearly. My truck did a similar thing once and it turned out to be a whole new tranny...hope this is a different issue. Thanks for your help guys and gals.
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