How do I fix a locked ATV engine?

I was offroading in my ATV the other day when it stalled at 45 miles per hour. There was no throttle response and then it locked up when I left off. How can I fix my locked ATV engine?

Talullah Blanco · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
I’m sorry to hear your ATV engine locked up while you were offroading the other day! Fortunately, you can easily unlock your ATV engine if you follow these steps:
  • Remove the spark plugs. Grasp the spark plug using a 5/8 socket wrench, twist it, and gently pull the spark plug straight out. Repeat this step until you’ve removed the spark plugs from all the cylinders in the engine.
  • Fill the cylinders with engine oil. Pour engine oil into the top of the cylinders. The amount of oil you use will depend on the size of the engine. A 4-cylinder engine usually requires around 5 quarts of oil to fill the cylinders.
  • Reinstall the spark plugs. Insert the spark plug and tighten it by hand or using a socket wrench. Make sure to not over tighten the spark plug or you’ll damage the threads.
After you let your engine sit for a few days, try starting your ATV. If your engine turns over and moves then you’ve successfully unlocked your ATV motor! If the problem persists, it may be time to rebuild your engine altogether.
ATV repairs can cost a pretty penny, but
car repairs
will cost you even more.
Cut costs and save money on
car insurance
with the Jerry app. A licensed broker,
does all the hard work of finding cheap quotes from the top name-brand insurance companies and buying new car insurance. Jerry will even help you cancel your old policy.
And to ensure you always have the lowest rate, Jerry will send you new quotes every time your policy comes up for renewal, so you’re always getting the coverage you want at the best price. This level of service is why Jerry earned a 4.6/5 rating on the App Store and made it the top insurance app in the country.
View full answer 
Jerry partners with more than 50 insurance companies, but our content is independently researched, written, and fact-checked by our team of editors and agents. We aren’t paid for reviews or other content.

Join 4M+ members in lowering their car insurance

Browse By Topics

Easiest way to compare and buy car insurance

No long forms
No spam or unwanted phone calls
Quotes from top insurance companies
Find insurance savings — it's 100% free