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my buddys 02? warrior cuts out as soon as you give it throttle. it stays running, but it missfires and pops through the exhaust. it returns to idle and idles fine. the timing looks ok and we have swapped the carb with no change.its been sitting a while waiting on carrier rebuild, it ran fine before that. any ideas?
Friend of mine picked up an LT80 that needs some work. The manufacture date is 11/1986
The fuel and vacuum lines for the carb were all disconnected. I picked up a new card and was hoping someone on here has a photo or knows how the lines are hooked up
Thanks in advance
Safety Is A Concern For Kids ATVs
The family is into racing ATVs and now the children want to get in on the action. How do you start with someone who is too young to drive a car, but yet sees other children their own age charging through the woods racing an ATV? A tough decision for parents, but with a lot of planning and instruction your kids ATV can become a reality.
Safety should be your first concern before getting the kids ATVs for their own use. You should plan on doing your research to make sure that you get the best kids ATV available for their age group and size. The research should include surfing the web and also by reading Consumer Reports—both of these will provide you with a tremendous amount of information on kids ATVs.
It is recommended that the youngest kid ATV riders should have an ATV that has an engine with no more than 4.3 cubic inches. There are not too many choices at this size for kids ATVs, but you want to ensure that your child is not riding a machine that it too large for them to handle.
As a concerned parent, you should check into the ATV Safety Institute. This group offers safety courses all over the country. The experienced instructors will teach you and your kids about pre-ride inspections, warm up exercises, braking, turning, and shifting. They also teach you about clutch and throttle control and about the importance of body position and simple maintenance. In addition they cover riding techniques and how to tackle obstacles, hills and different kinds of trails. All of these issues are important safety issues for your kids ATV riding.
So, what are the features will your kid's ATV have? One company has an experienced team of ATV enthusiasts that work with you on your kids ATV to hand select the perfect one. Each ATV they have is designed with safety in mind and they offer a 4-point safety system which includes a throttle limiter, an emergency kill switch, a safety kill tether and a remote kill key. The kid ATVs are safe and they come with a 4 stroke engine, headlights, an electric start and disk brakes. This company that focuses on safety with kid ATVs is Motorxtremes. They want to make sure that every kids ATV is safe and that the rider follows all safety precautions.
You should make sure that your kids ATV comes with all of the necessary additional safety equipment to make their ride as safe as possible. Every kid ATV rider should have a helmet with a full-face cover, goggles to keep dirt out of their eyes, gloves with finger and knuckle guards, a shirt with long sleeves and safety pads for their chest, shoulders, elbows and knees.
Make sure you and your children know the rules of riding ATVs. While you can not ensure that your kids ATV rides will be completely accident free, you can help them by providing the best additional safety equipment available.
By Dra O
posted a while back - it was running at one point - I have all the plastic shroud off - it's down to frame and engine now
-fuel pump: when line from petcock is attached, no fuel comes out other side to carb; the line to the carb is open (can blow through it); I thought when I cranked engine that the pump would spit out fuel on other side but it does not; I removed fuel pump and opened it up - diaphragm looks good - but internal areas had lotsa calcification build up - I cleaned this out and dried it good - the clear plastic pieces (?diaphragms) aren't broken - the spring w/ steel ball on end moves freely; am putting it back on tomorrow; but can anyone answer about the pump? isn't it supposed to pump fuel through it... to other side... to carb? puzzling
-along with fuel pump: I replaced petcock 3 weeks ago (gas tank had rusty fuel in bottom - cleaned it out prior to new petcock); when I turn petcock arrow NOT to on or reserve, fuel comes out of line; when I turn it to on or reserve, fuel doesn't come out; puzzling
-I don't know what's on back of fuel pump - it's a valve that has a hose coming out of it - looks like it goes to engine/carb - I haven't traced this out yet - what is it?
-can squirt gas on air filter and engine will run for 2-3 seconds then stop - fuel in top of carb (under diaphragm) does same
-it likely needs carb rebuild - will get to this - but something isn't allowing fuel to get from fuel pump to carb
-I THINK it has a mikuni model x carb - diaphragm is ID 26mm OD 68mm - hard to find inexpensive diaphragm, I guess because it's a model x
-last thing - I replaced solenoid due to old one clicking; I HAVE to be charging the battery or it won't start/turn over - battery just goes dead; but if charging, it'll turn over nicely; i'm guessing it's a bad battery
-any help appreciated - I've never owned an ATV before - inherited this beast from grandparent in-law
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Had a spark-plug break off, had to pull the head to get it extracted. Where the heck is the timing mark on the crank? Do I need to pull the stator or flywheel to find it? When I pulled the head I had the mark on the cam lined up pretty good but I cant remember if it was perfect and don't want to reassemble a tooth off and have to go back through the bear of pulling this thing back apart.
By Chase Cook
Hi I just got an Polaris sportsman 500 4x4 ATV the other day. I got it real cheap but I started to go into it because it didn't have compression so I bought a new piston and ring kit for it and installed it, but now when I try to start it all it does is shoot fire out the exhaust or the intake of the carburetor. And a timing is top dead center.;I think I can't really tell another way if it is or not. when I put it together I made sure to piston was on top and the cam lobes where facing down where are the cam sprocket is facing up. It has gas and spark. It did start a couple minutes ago but it didn't stay running and now it won't start. Do you think the valve need to be adjusted more to close better?I'm fixing to try that out and if that don't work what is the problem? Also I made sure everything was together good and right and change the oil and changed out the radiator fluid.
By Brian Sosebee
I just rebuilt my 03 sportsman 400. Put everything back together added oil per the manual. Pinched off the oil tank vent line 2" away ran for 45 seconds then cut it off. Check oil level and it was still way high so I wasn't confident that it primed so I did it again. Checked again and it's the same. Remove the oil filter and it is dry. I did the procedure again and the same results.
I'm worried to keep trying this as the only oil in the engine is what I used to lubricate the parts when reassembling the piston. The crankcase was drained as well.
I Removed the oil tank and checked all the lines for obstructions and the screen filter and the vent hose and everything is clear. I even pulled a small vacuum on the oil tank while it was pulled off to make sure there were no leaks. The dipstick cap was on tight so I'm not sure why this thing is not priming.
Anyone have any suggestions. I thought about pre-priming the oil lines from the oil tank to the crankcase to hopefully help the system prime. I'd like to be able to add some oil to the crankcase to so I wouldn't feel so bad about running the engine for another 60 seconds without oil. I dropped just a little bit of oil in the spark plug hole to help condition the sleeve right now.
What do I do? Anyone had or heard of an oil pump failure on these. Btw oil pump is working fine before I did the top-end rebuild and the oil pump was not touched.
Please help!!! Thanks all for any and all help.
By jay rear
Hi im new to the site. I have a 99 sportsman 500. I has been sitting for about a year now. I bought a new battery for it the other day and now i dont have any power to anything but the winch. Any help would be great. I already cut the pouch and checked voltage on both sides of the circuit breaker.
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