Petcock - Stupid question

[salty_monk]

GS1000G 1980.

When turned to Reserve will it empty the "top" of the tank first still? I assume it does before automatically switching to the reserve?

The reason I ask is that my gauge is not so hot so I use the trip meter. When I know I might have to go onto reserve near the end of a journey can I just switch it over before I start out (rather than on the move when it starts to play up) or is that bad practice?

Also trying to get the tank nice & empty so it's easier to deal with when I replace my HT leads.

Cheers,

Dan 8-[ :-D

[earlfor]

The reserve and run selection draw fuel through different height tubes. The run tube is higher in the tank, so when gas is used down to the level of the top of the pickup tube, the engine runs out of gas. Switching to reserve changes the pickup to a lower/shorter tube that will draw fuel at a lower level.
You can run the bike at anytime on the reserve setting, but when you run out, you are OUT. Instead ofbeing able to switch fuel pickups (from run to reserve), you are in push it to a gas station mode. LOL

Earl

GS1000G 1980.

When turned to Reserve will it empty the "top" of the tank first still? I assume it does before automatically switching to the reserve?

The reason I ask is that my gauge is not so hot so I use the trip meter. When I know I might have to go onto reserve near the end of a journey can I just switch it over before I start out (rather than on the move when it starts to play up) or is that bad practice?

Also trying to get the tank nice & empty so it's easier to deal with when I replace my HT leads.

Cheers,

Dan 8-[ :-D

[chef1366]

The reserve and run selection draw fuel through different height tubes. The run tube is higher in the tank, so when gas is used down to the level of the top of the pickup tube, the engine runs out of gas. Switching to reserve changes the pickup to a lower/shorter tube that will draw fuel at a lower level.
You can run the bike at anytime on the reserve setting, but when you run out, you are OUT. Instead ofbeing able to switch fuel pickups (from run to reserve), you are in push it to a gas station mode. LOL

Earl

The new definition of gravity:-D

[salty_monk]

Cool, thanks, that's what I thought I just didn't understand the mechanics of it, the two pipe setup makes perfect sense.

Dan

[earlfor]

Prudence dictates that one should always run out of gas at the top of a hill.

E. :-)

The new definition of gravity:-D