2006 yamaha wr250f wont start after improper storage

SOURCE: 2006 wr250f wont start cold.

Sounds like a battery that will not hold a charge. When the battery is low all the juice goes to the starter. Not enough left for a good spark. Kick start it and there may be enough juice for a spark. Doing a runstart will generate enough power to get a useable spark. Once running for a short bit the battery gets recharged so it's good all day. Then the battery dissipates the charge overnight.

Before you spend $40 or so on a battery, look to see if there is water covering the top of the battery plates. If so then the current battery needs to be replaced. If not, add water to cover the top of the plates and ride it for a day. See if it holds a charge now. Battery may still be bad but it was worth a shot.

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