Last week I bought a 1998 Honda Recon TRX250. It was sitting covered in the garage of a widow for 13 years unused. After cleaning it up it could pass for "almost new". I replaced the battery and tires, changed the oil and replaced the air filter. It fires up and runs strong but will not idle at all. It just dies. Where would you start? I'm guessing I need to pull the carb and rebuild/clean it.