If an engine won't crank, it is a battery, starter, solenoid or wiring problem. Cranking means "engine turning over". If you mean that it cranks/turns over but won't start, then that is a different problem.
An engine needs air, compression, good fuel and good spark to run. It could be something simple like bad fuel or weak spark. It could be that the spark timing is off. It could also be low compression. (A worn cylinder or valves that are adjusted too tight or open/off their seats) It could be getting too much fuel or not enough fuel.
You haven't really given enough information to be more specific.
Replace your sparkplugs.
Its out of gas
death by firing squad if you get caught in the act!!!!!!!!!!!!!!
articat atv366 wont start makes a cliking noise has good battery
quad wot start up after jumping it off a carbattery
try cleaning your carburetor thoroughly
You repair an ATV by first getting the materials required to fix it. You will need a wide range of materials in order to fix your ATV. I would suggest getting help from an individual who is experienced in this area, so no accidents happen while you are repairing it.
You repair an ATV by first getting the materials required to fix it. You will need a wide range of materials in order to fix your ATV. I would suggest getting help from an individual who is experienced in this area, so no accidents happen while you are repairing it.
Fix the fuel/air system. Simple as that. Either that or someone has drilled a hole in your exhaust.
You need to deflate your ATV tire before you attempt to take it off. Then you need to break the air seal. They should come off after doing these steps.
check the regulator under the seat its the small finned box
If an ATV isn't cranking despite receiving spark and fuel, it could be due to a weak or dead battery, a faulty starter motor, or issues with the ignition switch or wiring. Additionally, problems with the solenoid or a bad connection in the electrical system might prevent the starter from engaging. Checking the battery voltage, connections, and starter components can help diagnose the issue.