I recently purchased a 726, from what I see most all Toro's have primer bulbs. I for one do not see the real need, maybe I am missing something. I have yet to use it I just follow my usual regime, I always shut the machine down using the fuel valve and never touch the key or kill. When I go to start it up I turn on the fuel wait a few seconds pull the choke and hit the starter button, it starts instantly, has me wondering why they continue to install them. I have a two stroke mini tiller that the bulb split, I had to use the machine so I simply capped the line off and used the choke. That was a couple of years back it still starts and runs fine, yes it does tale maybe one or two more pulls but that is it. I have also eliminated it on my chain saw with no ill effects, I think it is nothing more than something that can go wrong! Would appreciate the feed back from others.