Here is a tip on not what to do. (Don't use Dex-Cool)
I have not performed maintenance on a vehicle myself for years, as I got tired of getting dirty and cold. Now that I have a bike, I am a believer in getting to know your ride,and there is not better way than to tackle the basic maintenance items.
Where I went wrong, was at the parts store, where I checked out the various containers of antifreeze and decided to go for the more expensive stuff that said it would last for up to five years. Sounded good to me. What I did not realize is that Dex-Cool, is a completely different product (OAT) and is not compatible with the typical green silicate based antifreeze, which is what Yamaha used from the factory. My next mistake was not flushing the system, so in fact I was mixing incompatible coolants. Fortunately I was feeling unsure about what I had done and checked for info on the web. There are horror stories about gumming and dissolved head gaskets, so I knew I had to fix the problem I had created. I did contact the manufacturer of the antifreeze and while they claimed I would probably be OK, they encouraged me to drain and flush the system. So that is what I did.
I completely drained the system and flushed both the rad and overflow tank with de-ionized water which is sold by the parts store as water to mix with coolant. I ran the bike up to temperature and flushed the system a second time. I knew I was good to go when the water was clear (no signs of pink). It is important to note that the overflow hose needs to be cleared out as well and can be done by attaching a funnel to the end of the rubber hose that goes into the tank. The antifreeze will exit at the connection by the neck of the rad. I should also note that I was able to flush the overflow tank by filling with water and using a large soap bottle pump to empty it out. I refilled the system with regular antifreeze of which I selected the pre-mixed version, to ensure I was getting a 50/50 mix.
I hope that by posting this information, I can prevent someone else from making the same mistake. The good part about this whole ordeal, is my cooling system is really clean now.
P.S. Dex-Cool is OK in appropriate applications, specifically when used in a new system, but as stated by the coolant manufacturer was not recommend for motorcycles.