Hey guys I need your advice.
I am a brand new rider with only about a week and a half of riding experience under my belt. I bought a starter bike, 2002 Ninja 250r, and the dealership told me that they had inspected it and everything was good to go. 2 days ago I encountered a problem with the coolant leaking out from under the bike. The dealer stated that it was probably low and the back pressure was what make the rest spew out from under the bike. I took the entire front end apart to refill the coolant take. Did that ran fine. Now today I was on my way to work and the bike stalled out in an intersection. I walked it down the street to the gas station and noticed that I couldn't see any oil in the oil tank. I put some oil in, 10w40, topped the gas off and that's when the real problems started happening. I get the bike started and it backfires A LOT. It's almost like it isn't getting enough gas to get up to speed, so at first I thought it was a fuel filter, but as I have read above these bikes do not have fuel filters, so I just don't know. It slows then it tires to take off, then it slows, and this just keeps going. Almost jerked me off the bike. I eventually got it home and it's sitting but I have no ideas what could be wrong with it. It's not under warranty and I have no knowledge about how to provide maintenance to the engine. I'm thinking maybe I did something wrong because it was running fine yesterday, and the week before the coolant went. Any advice from people who know more than I do would be greatly appreciated.