What size fuel shut off?

[gottago]

I would like to install fuel shut offs. Does anyone know what size the gas lines are?

Thanks in advance!

 

[Snorover]

I have tried different fuel shut-off valves and I like the in line fuel valve (1/4) from motion pro the best.
www.motionpro.com

Part no. #12-0035

 

[flyin-lowe]

I think on a previous thread they said to use a 7/32. If you do a search there was one with some good pics of a couple of different set ups.