I'm not sure that anyone can help me with this question. But here goes. My friend and I went to fire up his Yamaha Enticer and we had difficulty starting it. When we got it started it idled ok but we couldn't get any RPM's out of it. We thought it may have been fuel starvation or bad fuel. After draining all fuel and checking the fuel pump, filter and carb we still had the same problem. We also changed out the spark plugs, but again we still had the same problem. My friend assured me that it was running great when he used it last, although that was 6 months previously. Anyone got any ideas as to where we should look next? Any ideas would be greatly appreciated.