Hi Dave no need to turn off the petrol, the tank was 90% full on this occasion, the line must have a spring loaded valve in it, there are two connections of this type on the bike, I think one must be a feed and the other a return, thanks for commenting, John
![BMW R1200GS [2010] AIR-FILTER CHANGE.. IS IT EASY ? The Old Mechanic his own R1200GS 👨🔧---🏍](http://i.ytimg.com/vi/pey9kwevKw4/mqdefault.jpg)
![BMW R1200GS [2010] AIR-FILTER CHANGE.. IS IT EASY ? The Old Mechanic his own R1200GS 👨🔧---🏍](/img/tr.png)
a nice MAHLE-filter
John, do you have to turn off the petrol or is it cut by disconnecting the fuel line?
Hi Dave no need to turn off the petrol, the tank was 90% full on this occasion, the line must have a spring loaded valve in it, there are two connections of this type on the bike, I think one must be a feed and the other a return, thanks for commenting, John