Hey,
I've come across this forum a couple of times before, while fixing stuff, but this is my first post
I'm trying to repair a small stihl ms181 for a friend. It has this weird style of manifold and two butterfly valves on the carb leading up to them:
Three holes in the cylinder head: inlet, pulse and???
The carb:
What does the upper butterfly valve do? It opens along with the fuel valve and it seems it just lets air in somewhere?
So I'm just trying to understand the function of these parts.
Thanks in advance!
Kind regards
I've come across this forum a couple of times before, while fixing stuff, but this is my first post
I'm trying to repair a small stihl ms181 for a friend. It has this weird style of manifold and two butterfly valves on the carb leading up to them:
Three holes in the cylinder head: inlet, pulse and???
The carb:
What does the upper butterfly valve do? It opens along with the fuel valve and it seems it just lets air in somewhere?
So I'm just trying to understand the function of these parts.
Thanks in advance!
Kind regards