petrol in my oil.

[Red_bike]

It is almost definitely your needle valve in your carb sticking

Thanks Music Man, that was the part that I was trying to come up with.

Duck

[Water Warrior 2]

Originally Posted by alantf

Don't you mean PRIME position? Reserve is vacuum operated, just like run, but with a shorter tube in the tank.

Yes, I stand corrected. Don't know how or why I wrote that and didn't see my mistake. Was thinking Prime and wrote Res. Too many moving parts for an old guy.

[mrlmd1]

RUN has the shorter tube, RESERVE has the longer one, to the bottom of the tank.

[Easy Rider]

Originally Posted by mrlmd1

RUN has the shorter tube, RESERVE has the longer one, to the bottom of the tank.

:oops:

Mmmmmm.....let's think about that for a second, shall we ??

The outlet is in the BOTTOM of the tank.

ONE of the positions has a tube on it that will leave some gas remaining in the bottom of the tank and the OTHER position will use that left over fuel in the bottom.

Which position has the LONGER tube and leaves some in the bottom for the other position?

Answer: ON/RUN has the longer tube. When you switch to REServe, it uses the gas left in the bottom, below the inlet of the longer tube.

The GZ does not have a fuel pump; with gravity flow, it has to be that way.

[mrlmd1]

You're right, my mistake, I was thinking about something else, another machine when I wrote that. :oops:
With a gravity feed on the bottom of the tank, the Reserve is the shorter tube (and also lets you pick up any crud lying in the bottom of the tank, more so than in the RUN position).