2024 Chinese atv has spark and fuel but won't start

When troubleshooting why an ATV starts but won’t stay running, checking the fuel system is a good place to start. There are a few things that could be going wrong, such as old or dirty gas, a clogged fuel filter, or a weak fuel pump. If you suspect that the problem is with the gas, start by draining the tank and refilling it with fresh gasoline.It's got a crank position sensor that will tell the onboard computer where the crankshaft is. That will fine tune the timing. If that sensor goes out, then it won't start, or run. But that should throw a code, so it might not be a sensor. It could easily be a fuel issue.GY6 150cc wont start, Has gas, spark and air. Hi Everyone. I recently rebuilt a chinese GY6 150cc ATV. At my wits end. It will run the battery dead trying to start, It doesn't even fire for one stroke. Have tried using an accelerate which gives out a Puff. but no success, Its clearly sucking fuel, it has spark and is taking in air.Cleaned all the lines. Put in new Spark Plug. Cleaned the Air Filter. Set the float height at 17.5mm (turned carb upside down measured to highest point on the float) What I haven't done. I never installed a new air mixture screw in the carb from the Shindy kit. I have to drill out.Rancher420: You can confirm that it is getting fuel to the cylinder by: Turn the engine over a few times. Then, pull the plug and see if it is wet (with gas). If it is wet, then you are getting gas. If it is dry, then you are not getting fuel. Also, try replacing the spark plug.Re: Cub has spark & gas, but won't start!! Postby Dave F. » Sat Feb 21, 2009 4:08 am. FarmerMike, shut the gas valve off, Remove the 3/8 brass hex head bolt on the side of the carb. which is the main jet. there's a hole at the end of it use a very fine piece of wire & run it through the hole & spray carb cleaner in the side holes, to get it to ...2002 sportsman 500 won't fire has spark, please help. Hey I am new to the board. I have a 2002 sportsman 500 ho that won't fire up. recently started smoking so I tore it down and replaced the piston rings. Now after i put it back together I've had problems with getting it to start. I have got it to start about 3 times after kept turning the key ...If your chainsaw is equipped with fuel and spark but won't start, look for a few things to figure out what's wrong. First, ensure that the spark plug is clean and debris-free. Next, check the air filter to see if it's dirty or clogged. If so, clean or replace it. Finally, check the carburetor to see if it needs to be adjusted or cleaned.Fuel Level: Ensure that your Arctic Cat ATV has adequate fuel. Sometimes, an empty or low-fuel tank can lead to starting problems. Refuel if necessary. Fuel Quality: If the fuel in your ATV is old or contaminated, it may not ignite properly and cause starting issues. After emptying the fuel tank, top it with brand-new, premium gasoline.Gasoline engines use small, sudden gasoline explosions to drive pistons that the crankshaft turns into rotary motion. Gasoline engines mix fuel and air before entering the cylinde...Hi all. Have a bit of a head scratching problem. Been having trouble starting my rzr. I've changed the fuel pump. Checked the spark plugs. They were black so replaced those as well. I was able to start it but next day it wouldn't start. My buddy took off one of the coils to the spark plugs and we were able to start it.It has spark, and even when I put gas or starting fluid in the cylinder it wont even sputter for a second. I hooked a compression tester up to it and kicked it over and it went up to 140 each time. I checked my valve clearances and they are in specs except for my exhaust. They were .006 and .007. I believe they are supposed to be …First, check the battery to make sure it has enough power. If the battery is weak, try charging it or replacing it. Next, check the spark plugs to see if they need to be replaced. Finally, if all else fails, take your ATV to a mechanic to have them take a look at it. 1.Below are six of the most common reasons why an ATV won't start. They can be easily identified in a few steps to help make fixing the problem a bit easier. 1. Engine Not Getting Fuel. One reason your ATV won't start is that the engine is not getting fuel. The first step in fixing this issue is making sure that the fuel filter is correctly ...10 January 2023. It can be frustrating when you try to start your ATV, but it won’t start. You check the gas tank, and there is enough fuel. You also check if the engine gets enough …Examining the Fuel Line. A clogged or damaged fuel line can prevent your ATV from starting. Examine the fuel line thoroughly, checking for any visible damage or leaks. Make sure the fuel line is connected properly and the fuel filter is clean. If there is a blockage, clean or replace the fuel line as needed.6 posts · Joined 2014. #1 · Jan 9, 2014. Hi, I have a 2006 Honda Rubicon TRX500FA all it does is turn over but will not start I checked the gas for water no water checked for spark got spark checked battery it fine. I also went ahead and took the carb off and cleaned by soaking it in Chem-Dip for an hour blowing it out with an air compressor ...Shut it off, tried to start it again and it started and died. Now I don't get anything. Pretty sure it's getting gas, the plug comes out wet and sometimes after pulling for a while some will dump out of the cylinder when I turn it upside down. It has spark, maybe a little weak, not sure, so that's my main guess, but no idea what is causing it.Watch on. Not Starting (Machine turns over but will not start) Test for spark. (Remove the spark plug from the block, place it in the ignition coil and ground it to the engine. From here turn the machine over as if you were going to start the machine.) *Note: If you don’t have the spark plug grounded it might shock you slightly.Lets see what's wrong with this ATVWhen troubleshooting why an ATV starts but won't stay running, checking the fuel system is a good place to start. There are a few things that could be going wrong, such as old or dirty gas, a clogged fuel filter, or a weak fuel pump. If you suspect that the problem is with the gas, start by draining the tank and refilling it with fresh gasoline.Check for a Loose Spark Plug. If your ATV won't start, one possible reason is a loose spark plug. To check for a loose spark plug, follow these steps: 1. Remove the spark plug from the ATV's engine. 2. Inspect the spark plug to see if it is damaged or dirty. If it is, replace it with a new one.It does have the remote to shut the quad down, but does not have remote start. No reverse either. Tao Tao 110cc will not crank!!! Change the sparkplug to a NKG. I bought one for my grandchild back in Dec. and it cranked and ran fine for awhile. Warranty ran out (3 months) when I took it back.Re: Cub has spark & gas, but won't start!! Postby Dave F. » Sat Feb 21, 2009 4:08 am. FarmerMike, shut the gas valve off, Remove the 3/8 brass hex head bolt on the side of the carb. which is the main jet. there's a hole at the end of it use a very fine piece of wire & run it through the hole & spray carb cleaner in the side holes, to get it to ...1. Locate the carburetor on your ATV. It is usually located near the engine and has a small bowl-shaped part attached to it. 2. Remove the cap from the carburetor and pour in a small amount of starter fluid (about 1/4 cup). 3. Replace the cap and try starting your ATV again. If it still doesn't start, repeat this process until it does.What's This? If you are sure your engine sparks, has enough fuel, and is able to compress, but still won't start, it could be due to a wide variety of issues, the most common ones being timing issues, faulty sensors, malfunctioning fuel delivery systems, software glitches, exhaust obstructions, problems with the immobilizer, or electric problems.I took a 9 volt battery and two jumper wires and unplugged the fuel pump. Hooked it up and the pump wouldn't spin forward ,reversed the wires and it spun backwards . Then it would spin forward , plug it back in and it would start right up. My sled is a 16 8000. It happened between 160 miles on sled and 300.To run, it must have 3 simple ingredients: 1) Spark, 2) fuel, and. 3) compression. You said you have spark. You said you added fuel (starting fluid) So, you need to check your compression. It might be time for an overhaul. H.2 stroke has fuel and spark but won't start. You've confirmed that the gas is getting to the carb, and the spark plug is properly igniting, but your 2 stroke dirt bike won't start. The most common causes are a dirty carb or low compression. Keep reading to learn how to properly fix a dirty carb. Low compression is the result of a worn top ... Chinese quad has spark and cranks but doesn’t fire up! Would could it be? : r/ATV. Chinese quad has spark and cranks but doesn’t fire up! Would could it be? Compression, spark timing, bad plug, not a "good" spark, Fuel delivery issues, bad carb gaskets, and the moon needs to be waxing for them to run. Fuel quality or spark plug foul? It has spark, and even when I put gas or starting fluid in the cylinder it wont even sputter for a second. I hooked a compression tester up to it and kicked it over and it went up to 140 each time. I checked my valve clearances and they are in specs except for my exhaust. They were .006 and .007. I believe they are supposed to be between .0079 ...R. retro. 5960 posts · Joined 2017. #18 · Dec 27, 2018. That makes sense... the ignition systems on Recons are AC-CDI, so the primary voltage is grounded to shut the ignition off. Check the ignition switch and kill switch for proper operation per the manual in the switches section. One of those is probably at fault.The Ignition Coil. One of the most significant precious parts of the chainsaw to make it start is the ignition coil. If it’s broken or damaged somehow, even your brand-new chainsaw won’t start with starting fluid. It converts the low voltage into a high voltage to perform the electric spark. Use an ignition coil tester or a multimeter and ...if the gaskets suck air then you will not. get any fuel mixture into the engine. Clear out any fuel in the engine and if the. spark is good it should fire on a small amount. of starting fluid. You can also check the valve. and rocker arm movement when turning the engine. slowly. intake opens then compression, power, and.Remove the spark plug cap from the spark plug. Connect one end of the tester to the spark plug and the other end to the spark plug wire. Try to start the moped. The tester has a small window through which you can see if a spark is generated when you try to start the moped. A bright blue spark is a good sign.have fuel have spark wont start plz help !!! Jump to Latest Follow. 17K views 15 replies 4 participants last post by pjconstruction Feb 1, 2012. P. pjconstruction Discussion starter. 11 posts · Joined 2012. #1 · Jan 29, 2012. Was running fine last night just quit at 3/4 throttle. Cleaned carb, got fuel, checked fuel lines, acts like it wants ...WKEND LUMBERJAK said: Try a plug from a known running saw some times new plugs are bad. zogger said: Timing, or mud dauber nest or blocked screen in the muffler. All my thoughts also. I've had plugs sparking fat blue sparks outside the saw, but wouldn't fire under compression. Swapped plugs and saw runs.A tip for your Model A. Points out how a manifold leak can cause a no start condition.474 posts · Joined 2010. #7 · Feb 27, 2016. Pull the plug and burn off the fuel on it with a lighter. Reinstall plug and crank with the throttle cracked about 1/3rd to ½ open. It sounds like you may be getting too much fuel. If you've got fuel, spark and compression then you should have a running engine.To run, it must have 3 simple ingredients: 1) Spark, 2) fuel, and. 3) compression. You said you have spark. You said you added fuel (starting fluid) So, you need to check your compression. It might be time for an overhaul. H.An ATV engine that’s getting spark and fuel but won’t start likely suffers from low cylinder compression or incorrect engine timing. Poor valve lash, failed head gasket, and worn piston rings are common …Apr 26, 2014 · 301 Answers. SOURCE: 110cc atv. There are three things required for combustion to occur: Fuel, compression, and a spark (at the right time). One, or more, of these is/are missing. If the bike has been in storage for more than about a year, then you can bet that the carburetor is plugged up. It will need to be completely disassembled and cleaned. Drain the carburetor. There should be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install a new stock NGK spark plug and try to start the engine.I have replaced all the above, but the wiring was all messed up and wires not connected. I have replaced everything to the best of my ability using the close but not exact wiring diagrams I have found online, all appears to be correct. I'm getting good spark and fuel. It will pop or backfire out of the carb while turning over but will not start ...Checked compression and it was reading approx. 95-100 cold. Fired it up and let it idle for about 5-10 min. Checked compression again and it was approx. 118-120 warm. That being said, Still have no idea why this thing won't start cold without drowning out the crankcase after a fresh top end rebuild and crank seals.What to do when your ATV won't start after sitting for a while! Get those ATVS Ready for Spring! Watch me with one of my flips on this Kawasaki Prairie.2009 honda rancher es wont start. Its fuel injected and has spark. Fuel line from pump at the throttle body flows fuel. Kill switch is good and petcock is on for fuel to flow. Can hear fuel pump priming. When I spray starter fluid straight into the throttle body it starts for a couple seconds then dies. Any ideas?Troubleshooting the Ignition Coil: Check for 0.1 ohm ~ 1.0 ohm across the two primary coil terminals. This isn't exactly definitive, as we have seen working coils with 0.0ohms resistance. The best way to tell if the coil is bad is to perform steps the steps above. If there is still no spark, the coil is likely bad.I have a 49cc 2cycle engine that I replaced the carb on. It has fresh gas and appears to have a spark. I can't get it to fire even if I put some starter fluid in the air intake. It seems to have compression. The motor has sat for a few years in a garage, it did have old gas that I clean out of the tank.Before you go to this extreme, troubleshoot and try to fix the problem using the details below. A lawn mower turns over and won't start when it isn't getting air, spark, or fuel due to a plugged air filter, incorrect choke setting, bad spark plug, plugged fuel filter, clogged fuel line, bad fuel pump, dirty carburetor, or old gas.To troubleshoot a Chinese ATV with no spark, you will need a multimeter and a test light. The ignition system on most 90cc, 110cc, and 125cc Chinese ATVs has only 6 components. If anyone of them is bad, then the ATV will crank but have no spark. These 7 components are the spark plug, ignition coil, CDI, magnetic pickup, stator, ignition switch ... Similarly, any obstructions in the air intake system can prevent the necessary air from entering the engine, causing it to struggle or fail to start. Checking the air intake for debris or blockages and removing them can quickly resolve this issue. 5. Compression Problems. Here are a few tips on how to prevent your ATV from not starting in the heat: -Make sure the spark plug is working properly. The heat can cause the spark plug to fail, which will prevent the ATV from starting. -Check the battery. The heat can cause the battery to overheat and die. -Clean the air filter.To adjust the intake valve put it on top dead center on the compression stroke then take the valve adjustment cover off and loosten the nut then back the screw off un till their is just a little bit of Play just a tad bit then hold the screw and tighten up the nut. Put the cOver back on I bet u it will start. Arctic Cat 300 4x4.5. No Compression Occurring. If your ATV won't start because there is no compression occurring, you need to check your spark plug wires. These wires cause the compression of the fuel in the carburetor. When there is low compression, it can lead to poor performance or even a lack of power.12 posts · Joined 2011. #1 · Aug 24, 2011. I was given a 2000 trx 90. I have replaced the spark plug, holding it to the frame there is good spark. I have cleaned out the carb. I shoot starting fluid into it and it won't kick over. I am leaning towards my valves need adjusting. Here is my issue: I am not exactly sure where to slip the feeler ...Shut it off, tried to start it again and it started and died. Now I don't get anything. Pretty sure it's getting gas, the plug comes out wet and sometimes after pulling for a while some will dump out of the cylinder when I turn it upside down. It has spark, maybe a little weak, not sure, so that's my main guess, but no idea what is causing it.When I push the start button, the crank turns but it fails to fire. In fact I don't hear any firing at all as if the sparkplug isnt working at all. Steps I have taken so far to troubleshoot: 1. Fuel valve is open. 2. Has fuel in the tank. 3. Brake is applied.Oct 30, 2017 ... FamilyGoKarts · Go Kart Won't Start - Clean the Carburetor · GY6 Electrical Troubleshooting Tutorial - “No Spark” Eliminator · Chinese ATV...The most common causes are: 1. Dirty or old spark plugs – If the spark plugs are dirty or old, they may not be firing properly, causing the engine to not start. 2. Stale or old gas – If the gas in the tank is old or has been sitting for a while, it may not be combusting properly, causing the engine to not start. 3.Other possible reasons an ATV won't start when cold include: Battery low. Stale gas. Choke needs adjustment. Frozen carburetor. Wrong engine oil type. In this post, you'll learn about all the most likely reasons your ATV won't start in cold weather and what you can do to fix it right now. CLOSE.5. #1. Posted June 3, 2019. I have a 1999 Sportsman 500, it was running fine, than started to lose power in the winter, I adjusted the idle screw and away I went, than a few weeks ago it died, I have found that i am flooding the engine, compression was at 70PSI and due to the compression release mech. i assume i am good as it compared to the ...Other possible reasons an ATV won't start when cold include: Battery low. Stale gas. Choke needs adjustment. Frozen carburetor. Wrong engine oil type. In this post, you'll learn about all the most likely reasons your ATV won't start in cold weather and what you can do to fix it right now. CLOSE.Well here is some stuff to check out: -Make sure all wire going to the stator are color matched, and in secure. -Make sure the wires going to the CDI Unit are color matched, and secure. -Make sure the wire for the voltage regulator is grounded well. -Check the wire that plugs to the spark plug coil is secure. -Make sure you have gas, and the ...My Bayou 300 would not start, so I went through the normal ritual of looking for spark, fuel, and compression. I had all three! When I held the spark plug next to the engine block, it would fire normally, but ultimately, after checking everything else, I figured out that my spark plug was indeed bad. New plug and my quad is running like new ...If your China ATV won't start, whether it's straight out of the crate, or seen its better day; there may be a quick fix. Often times we overlook the obvious. First, let's check to see if it has fuel. No, I'm not trying to insult …The most common causes of an ATV that won't shut off include: Poor grounding in the ignition. Damaged ignition wires. Faulty kill switch or ignition switch. Faulty ECU or CDI. Overrun on carburated ATVs. When faced with an issue like this, the problem is often electrical.This video will show you how to possibly get your scooter back up and running if you're getting gas, have spark and compression.Hey Guys! Want to know why I ...Chinese atv won't start, got fuel and spark... So I recently acquired a Chinese atv, it was not running, put on a new carb,fuel line, and plug and it started right up drove it a little bit but it would die at times and at one point would not start back up. Pulled the carb wich is new and blew out the jets for insurance and nothing.If it won't turn over, you need to repair the starting system - fuel pump may affect starting and running, but it doesn't have anything to do with turning over. Shop Owner and Mechanic with over 50 years experience. This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.7461 posts · Joined 2013. #7 · Oct 6, 2015. it's sounds like a fuel mixture/plug issue to me. inspect the plug. 9/10x I've had starting issues with my machine was because the plug was fouled. I know it's harder to get to on the 570, but with my machine it's less than 5 minutes to get it up and running if it's the plug.If you already have it apart just go ahead and do a top end rebuild. Clean up valve seats and put in a new piston and rings. Should be able to do it for less than $20.You would have no spark if the crank sensor was bad. You may have flooded the engine by pouring in gas. You need to check fuel pressure next. Fuel pressure needs to be 60-66 psi with the key on. Pressure must hold above 55 psi for 10 minutes after the pump shuts off. Post back your pressure results.Last week I put in a 20oz bottle Techron injector cleaner in the tank (full) along with 8oz Mystery Oil. I know I have good spark, and just rigged a fuel pressure gauge. Pressure goes to about 45 psi when the ignition is turned on, and stays up. If I could start it, I'd assume that when the manifold vacuum appears, it would drop to around 35 ...After those you typically hear a lot more racket when you turn it over. A good way to check it by ear is to turn the motor over by using the starter and if its just turning over and not making the "glub glub glub" sound from the exhaust then you have no compression. I gotta say its far more likely that its not getting spark though.Watch on. Issue: Machine has Power But starter will not Turn Over Diagnosing Make sure you are getting a brake light, most machines have a safety that will not allow the starter to turn without the brake being held. If you are getting a brake light, check and make sure that when you push the start button that the light does not.Chinese atv won't start, got fuel and spark... So I recently acquired a Chinese atv, it was not running, put on a new carb,fuel line, and plug and it started right up drove it a little bit but it would die at times and at one point would not start back up. Pulled the carb wich is new and blew out the jets for insurance and nothing.After those you typically hear a lot more racket when you turn it over. A good way to check it by ear is to turn the motor over by using the starter and if its just turning over and not making the "glub glub glub" sound from the exhaust then you have no compression. I gotta say its far more likely that its not getting spark though.Step 1: Check Fuel Supply: Ensure there is an adequate amount of fuel in the tank. Verify that the fuel petcock (fuel valve) is set to the "On" or "Reserve" position, depending on the fuel level. If the fuel has been sitting for a while, it might have become stale. Consider draining the old fuel and adding fresh fuel.Try to start it again and watch the plug for a light spark. Spark, Great! No spark, we'll get to that in a moment. If you have spark, but it still won't crank, your problem is most likely fuel related since the fuel/air mixture …You would have no spark if the crank sensor was bad. You may have flooded the engine by pouring in gas. You need to check fuel pressure next. Fuel pressure needs to be 60-66 psi with the key on. Pressure must hold above 55 psi for 10 minutes after the pump shuts off. Post back your pressure results.

A Briggs & Stratton lawn mower engine won't start due to a bad spark plug, plugged air filter, wrong choke setting, dirty carburetor, plugged fuel filter, clogged fuel line, bad safety switch, or old gas. Briggs & Stratton riding mowers or push mowers with an electric start may have a weak battery, corroded or loosed cables, or a bad ignition .... How many cigarettes is a vuse pod

chinese atv has spark and fuel but won't start

After those you typically hear a lot more racket when you turn it over. A good way to check it by ear is to turn the motor over by using the starter and if its just turning over and not making the "glub glub glub" sound from the exhaust then you have no compression. I gotta say its far more likely that its not getting spark though.There are several common reasons why a Coolster ATV may not start. In this section, we will discuss four major issues that could be causing the problem: fuel issues, spark plug problems, battery concerns, and carburetor complications. Fuel Issues. One common cause of an ATV not starting is related to fuel issues. To troubleshoot this, ensure that:Sounds like low compression. Should be 90-110 psi. Engine Turns Over But Fails to Start. G No fuel. G Dirt in fuel line or filter. G Fuel will not pass through fuel valve. G Tank vent plugged or pinched. G Carb starter circuit plugged. G Engine flooded.It's not just about emissions, but also about dealing with sputtering auto sales. In September last year, a top Chinese industry official told an automobile conference that China w...A Toro snowblower won't start when it isn't getting sufficient air, fuel, or spark. This may be due to a lack of fuel from old gas, a bad fuel cap, a clogged fuel line, or a dirty carburetor. A bad spark plug, stuck choke, or incorrect starting procedure can also cause a Toro snowblower starting problem. Remove the spark plug wire prior to ...A blocked filter causes a rich fuel condition and flooding. Bad gas - Old gas goes stale and loses its ability to ignite. This may result in flooding of the cylinder and spark plug fouling. Fouled spark plug - A spark plug that doesn't fire won't ignite the gas, and the most common cause of a nonfiring plug is fouling.In this video, I show how to diagnose and fix a Kawasaki Bayou 300 that will not start. The same method should work for any carbureted 4-wheeler or dirtbike...Sounds like low compression. Should be 90-110 psi. Engine Turns Over But Fails to Start. G No fuel. G Dirt in fuel line or filter. G Fuel will not pass through fuel valve. G Tank vent plugged or pinched. G Carb starter circuit plugged. G Engine flooded.The Fix. Check the fuel filter and make sure it’s not clogged. Make sure the fuel tank is not empty, and that the fuel lines are not kinked. Check the fuel filter and make sure it’s not clogged. 5. Low Compression. If the engine has low compression, it may not be able to generate enough power to start.if the gaskets suck air then you will not. get any fuel mixture into the engine. Clear out any fuel in the engine and if the. spark is good it should fire on a small amount. of starting fluid. You can also check the valve. and rocker arm movement when turning the engine. slowly. intake opens then compression, power, and.If you too have spark and fuel, change plugs and check for a sheared off flywheel key way. Sometimes bad plugs only spark out of the engine and not under compression, so try new ones. A sheared flywheel key will allow spark, but not at the correct time keeping it from starting.Inspect the Spark Plug: Remove the spark plug and look for any signs of damage or fouling. Check the Fuel System: Make sure there's gas in the tank, the fuel line isn't clogged, and the carburetor is clean and properly adjusted. Examine the Ignition System: Check the ignition switch, ignition coil, and other related parts for any signs of ...Troubleshooting the Ignition Coil: Check for 0.1 ohm ~ 1.0 ohm across the two primary coil terminals. This isn’t exactly definitive, as we have seen working coils with 0.0ohms resistance. The best way to tell if the coil is bad is to perform steps the steps above. If there is still no spark, the coil is likely bad.Wiring harness and connector issues are some of the neglected but significant causes of starting problems. This often happens due to the following reasons: Malfunctioning spark plug (s) Spark plug (s) not getting proper sparks. Damaged ignition coil with corroded wiring. Broken auxiliary or shut-off switch.if the gaskets suck air then you will not. get any fuel mixture into the engine. Clear out any fuel in the engine and if the. spark is good it should fire on a small amount. of starting fluid. You can also check the valve. and rocker arm movement when turning the engine. slowly. intake opens then compression, power, and.Has spark, compression, fuel and air but still wont start. So a friend of mine has a 2003ish eiger 400 4x4 that was running one day, and the next morning wouldn't start. I figured it was just a carb issue, so I cleaned the carb, and still wouldnt start. I have a big bear 400, so comparing to the pull start on that, the eiger seemed low on ...2002 sportsman 500 won't fire has spark, please help. Hey I am new to the board. I have a 2002 sportsman 500 ho that won't fire up. recently started smoking so I tore it down and replaced the piston rings. Now after i put it back together I've had problems with getting it to start. I have got it to start about 3 times after kept turning the key ...Check for a Loose Spark Plug. If your ATV won’t start, one possible reason is a loose spark plug. To check for a loose spark plug, follow these steps: 1. Remove the spark plug from the ATV’s engine. 2. Inspect the spark plug to see if it is damaged or dirty. If it is, replace it with a new one.If your China ATV won't start, whether it's straight out of the crate, or seen its better day; there may be a quick fix. Often times we overlook the obvious. First, let's check to see if it has fuel. No, I'm not trying to insult anyone, this is a common problem. Sometimes fuel filters break, fuel lines rot, and plastic gas tanks crack.If you have carb cleaner you could also give the air cleaner a good shot instead of the shot in the plug hole. If it pops or starts then you know your ignition system is working, and you have a problem with it not getting fuel. If nothing happens then try a new cheap spark plug properly gaped 0.018" to 0.020"..

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