I have a Yamaha RT 100 that my son is looking to sell.  The bike runs decent but could use the carb cleaned or you could buy a new one off Ebay or Amazon for around $30.    The plastics are off a newr bike and modified to fit, could still use a couple bolts in rear fender. It also needs a number plate.   It is a 2stroke with the oil injection.  The bike was started for the first time in 2 years a few weeks ago.  We kicked it 5-6 times and it fired right up.  My son and nephew rode it aroung the camp grounds at the sand dunes last weekend.  I am 235lb s and it will pull me around just fine.  We are selling because he would like to get a 4 wheeler.  This would make a great beginers bike or something to run around the farm on.