Where can I purchase a charger and manuel for a EZ Rider Wild Child Motorcycle

You could try the original supplier or ebay and failing that you could try searching online for a pdf manual and just buy any charger that is the correct type voltage and most importantly polarity, having looked at the bike its a childs harley type bike and is 6v 4ah and likely a sealed lead acid type so i would buy a 6v 500ma lead acid charger, if there is a charge port you will need a plug to match and you will need to check the polarity is correct or if there is easy access to the battery terminals you could just use the crocodile clips to the corresponding terminals on the battery itself there is a selection of chargers here 6V Lead Acid Battery Charger eBay a 500ma charger will charge the bike in 8hrs the higher the ah the faster it will charge but i wouldnt go much higher than 500ma without checking with the vendor that it is suitable for a 4ah battery hope this helps