Yeah the syphon kits come with a bulb, that's what I use.
Thou I will say...
They work great until you use them every day,
then the bulbs act so stupid and besides it's so
inconvenient I just use my mouth and suck.
The good thing is with the clear tubing I can see the fuel
long before it gets in my mouth, maybe twice in 3 years
have I gotten a little.