Originally Posted by
Raleighcopter
In the Stihl carb, which has a pump, the pump is before the solenoid.
My thoughts as well. In an M-tronics carb the pump
and the regulator precede the solenoid. The solenoid replaces the HS and LS needles and the solenoid and regulator are as close as can be to one another. In the case of a glow carb there's no way to get the two that cloise together. Partly what prompted my question.