First the bike started harder until it didnt start anymore. I thought it could be thee battery Eventually the starter didnt turn the engine over anymore. I put a new battery in and tried to start with the same effect. The starter didnt turn the engine over. So I took the spark plugs out, cleaned them and cranked the bike before I put the spark plugs back in. Stream of fuel came out of rear cylinder and some fog from front. With the spark plugs in it started, not exactly super easy but it did. There was also some smoke coming up from under the seat, where the cylinder heads were. I didnt smell a burnt smell though and ignored it. I then drove up and down the road and as I came back to the house the engine died. The bike didnt want to start from here. The starter turned but and the engine turned over but it didnt wake it. I researched the issue but came to no conclusion or maybe a comon xvs problem. Who can solve this mystery.