How to Troubleshoot a 1990 Suzuki LT80 ATV

Written by mark spowart
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The Suzuki LT80 ATV is a smaller all terrain vehicle that is designed for younger riders. The 82cc engine displacement, fully automatic transmission and built in throttle limiter make the ATV easy to operate and an appropriate choice for beginner riders. As with any mechanical vehicle, there may come a time when you need to troubleshoot the Suzuki LT80 if it is not performing as it should. There are a few items you can check yourself at home.

Skill level:
Moderately Easy

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Things you need

  • Spark plug wrench
  • Spark plug gap tool
  • Owners manual for Suzuki LT80 ATV

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Instructions

  1. 1

    Start the ATV, or try to start the ATV. If the engine is turning but not starting there may be a problem with the starting system. If there is no response at all, the battery may be dead or there is a short in the electrical system. Test the battery using a battery charger. Use a wire brush to scrub any corrosion off of the battery contacts and tighten the battery cables.

  2. 2

    Inspect the exhaust and air intakes if the ATV is running rough when you start it. Use a small screwdriver to adjust the idle mixture on the carburettor. This should solve any rough idling problems with the ATV. If it does not, turn the ATV off, take the spark plug wire off of the spark plug. Remove the spark plug using a spark plug wrench.

  3. 3

    Clean the end of the spark plug that creates the electrical discharge with a wire brush. Refer to the owner's manual and look for the correct gap setting for the spark plug. Use a gap tool to re-gap the spark plug.

  4. 4

    Insert and tighten the spark plug, reattach the spark plug cable and start the ATV.

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