I messed with a $50 pit bike I bought and could not get that thing to start, found the kill witch was wired to a momentary switch that was normally closed (doh!) and the carb was shot. I bought a Walbro carb clone off ebay for $8 shipped and the 49cc started on the first pull of the cord! I get my 8 year old on it and told him the brake is on the right, He floors it and it takes off straight across the street right into the rear fender of my neighbors car...first time on a gas bike and he just froze. Ended up with a gash on his leg and me sleeping on the couch for that weekend. Rear tire was flat on the rim, I can imagine how much worse it could have been on 2 good tires! It hauled *** and was sold the next day. Not sure what the CID is of that B&S but the 49cc chinese motors wind up fast.
