Serial number V30J-1A004051 ETON FOUR WHEELER

yes

if your four wheeler is back firing you may have water in your gas or your gap on the plug

Sounds the voltage regulator/alternator problem

every four wheeler I've ever worked on has the ignition timing fixed and controlled by the CDI. Mechanical timing usually invovles lining up the T on the flywheel with a mark on the cam shaft. you'll need a service manual for more specifics.

Make and model please and the year if possible.

could be lots of things from the spark plug to the stator or even the cdi. you'll need a service manual and a multimeter to test it all.

you should have a serial code on it and within the letters and numbers it will have a kind that it is. research the numbers on line

push it off a cliff

check coil

1. eHow
2. Car Repair & Maintenance
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4. Drain Car Oil
5. How to Repair a Polaris Four Wheeler

How to Repair a Polaris Four Wheeler By Brianna Byrne, eHow Contributor Spark plug inspection and adjustment can be one way to repair a Polaris ATV.

Almost every vehicle needs regular servicing and repairs in order to continually perform at its best, and Polaris' lineup of four wheelers is no exception. The company has released dozens of ATV makes and models throughout the years, ranging from sporty racing quads to youth models to heavy-duty utility ATVs. Despite the differences between the company's many makes and models, general repair tips and troubleshooting instructions remain consistent for all Polaris four-wheelers. The electrical, ignition and fuel systems are some of the most common sources of Polaris ATV problems.

Read more: How to Repair a Polaris Four Wheeler ' eHow.com http://www.ehow.com/how_8074861_repair-polaris-four-wheeler.html#ixzz26pmQIzeh