40PHH Mikuni Solex problem

[Donnie]

My Seven has 2- 40PHH Mikuni Solex sidedrafts. Once choke is reduced,the engine dies. Cannot maintain RPM less than 2000 RPM. Carbs were rebuilt recently. Tempted to go to Webers. Any thoughts? Thanks in advance.        Donnie

[Croc]

 

As someone who has 12 webers to keep running I am shuddering violently right now...

 

Sorry not much help on Mikunis - never had to work with them before.

[anduril3019]

Did you have the same (or other) problems before the rebuild?

[11Budlite]

 It's been a long time since I messed with carbs. I never worked on a Mikuni, but did have a Weber DCOE on a 1275 Spridget motor that worked pretty well. Was anything changed during the rebuild, idle jet, etc, and was it doing something similar before the rebuild? Have you adjusted the idle mixture? Maybe it has a vacuum leak, are you using the soft mount setup between the carb and intake manifold? Is this on a Ford Kent?

[anduril3019]

 

32 minutes ago, Croc said:

 

As someone who has 12 webers to keep running I am shuddering violently right now...

 

Sorry not much help on Mikunis - never had to work with them before.

 

I'm trying to imagine what 24 cylinder car you have. 

[MV8]

Does the pilot screw adjustment do anything to improve the situ?

 

https://www.mikunipower.com/PHH01.htm

 

 

[jbcollier]

Sounds like plugged idle jets.  Any crap in your fuel?