My quad has been acting up as of late if I start it daily it is fine but if it sits for a week or more it just doesn't want to start... It has been to Polaris and they cannot figure it out but has become a real issue any ideas would be great

 

On a battery tender,or ethanol treatment in the fuel? If not could be the reason it's hard to start after a week or so.Batteries can loose up to 1% of their charge daily sitting idle.