I have abuddies wheeler at my house. It is a 300 bayou 4x4. Late 80's model. He let me take it for my kids to put around the yard on but it will not run. I cleaned the carb, put new gas in and checked the plug. The only thing it does it 'pop' back thru the carb once in a while. It has good compresion and there is spark. I even tried some starting fluid to see if it would even fire but, nothing. Any one have any experience with this quad? Electical maybe?