How many miles on the bike now? Where is your fuel from? compression low?The dealership did not fix the issue. My bike still does it. It's extremely frustrating when you happen to kill the bike ( like me) and NEED to get the bike started right away. A friend of mine used to work at a Yamaha dealership and told me that I need to get a bigger cold cranking amp battery for the bike. Has anyone tried this yet? It's starting to become fall here, so I don't know how much more time out on the road I will get before winter hits. I would like to get this figured out before I have to put it up for winter.
Does it still start fine when cold? I have a theory it could be the fuel map when engine is in operating temp compared to cold start. Not sure if our bikes have that but I know cars have a cold/hot start map. RX7's have this problem when the compression is low or chamber gets flooded with fuel.Fuel washes some of the oil away to. If you happen not to get it started on the first crack it takes a bit to unflood the engine. Might be a similar problem. I know a faster spinning starter makes more compression which helps the fuels combustion. Maybe thinking that. I say try it out, nothing to loose! lol