Hi All, I recently bought a used 1999 Yamaha FZX 250 Zeal from a local dealer. It's only got 6,000km on the clock, and had been garaged for a couple of years by the previous owner. The shop I bought it from did the 6K service, but that only involved changing fluids and checking the tightness of bolts and tyre pressures etc. I'm a learner and have only ridden the bike for a couple for weeks on a 15km commute to work. One evening last week on my way home I changed from 5th to 6th gear and the engine simply died. I was going about 70 or 80km/hr, up a gentle rise. I'm almost 100% certain that it wasn't because I released the clutch too fast as the bike didn't lurch or anything - it just went silent. I think it died when I shifted gear and before I started to release the clutch. Then yesterday morning on the way to work the exact same thing happened under the same conditions. On both occasions I managed to pull over and it took 5 or 6 attempts to start the engine again. Also, on both occasions it happened about 5 mins into my ride. The weather here in Tas has been a bit nippy the last couple of weeks, so I'm wondering if that has anything to do with it. I have been letting the engine warm up well before I start to ride, and I've made sure the choke is fully in before taking off. I'm a noob when it comes to bike mechanics, but I would have thought that if the engine was still too cold then it would be more likely to cut out when engaging the clutch in the lower gears when it has to do a bit more work (especially given my rough learner level gear changes)?? Does anyone have any ideas of what the problem may be, or what tests I can do to eliminate possible causes? Both times it happened I was lucky to be able to pull over safely - I'd hate for this to happen on a narrow section of the highway I ride on for part of my commute. Thanks. John.