Put a new battery fully charged in my 06,, 5 days later dead,are there electrical components that bleed the battery when the key is off
Except for some very small drain by the vehicle computer, "key off" should mean that everything is off. A few idle weeks will not drain the battery by much. If your rear brake pedal does not return to the fully UP position every time, it can leave your brake light on and drain the battery flat. The brake pedal pivot needs to be cleaned and lubed at times.
Win or lose, I recommend using an intelligent Battery Tender (or similar) to keep your battery in good shape. You can damage a vehicle battery badly by letting it go flat. My battery is elderly but okay; I often connect it to the Battery Tender to reduce sulfidation. Any intelligent Battery Tender will have an automatic de-sulfating cycle that kicks in at intervals.
If you have electrical accessories, it is best to power them through a relay-controlled power distribution fusebox. The ignition key powers only the relay, and the accessories can be fed from the relay with straight battery power, not through any stock wiring. The relay draws very little current, so it does not load the Yamaha wiring very much. Then when you turn off the ignition, you will know that everything is really OFF.
Do you have a multimeter? Otherwise, can you construct a 12V test light, using a small instrument bulb?
If you have no accessories to blame, then there is still a way to track down the culprit in one session. Keep us posted on what you have there. Your new battery may have taken a serious hit by being flattened, but best wishes.