HELP! Tillotson HS

[Shane¹]

Anyone know where to find specs for different tillotson HS carburetors? Trying to figure out some differences in models.

 

[Squareground3691]

https://tillotson.ie/wp-content/uploads/2015/07/HSPartsList.pdf

Not sure if this is what you’re looking for,

 

[Shane¹]

If I can figure out how to read that it may be what I need. Trying to figure out if jetting and venturis are the same between a few carburetors

 

[Shane¹]

Basically want to know have a p100 supposed to have a hs172 I believe. Has hs186 on it but would a hs203 from a 133 flow enough fuel but not be fuel governed?

 

[mgr1]

All this information was on Tillotson website a few years ago. There must be post on this forum about the specs.
Maybe that you can find a link from it.

Dolmar hs203 is governed.

 

[Shane¹]

I believe the 123 and 143 carbs were fuel governed but I am pretty sure 133s were not but I may be wrong about that

 

[Agrarian]

HS-203 - 11/16" venturi
HS-172 - 11/16" venturi
HS-186 - ? but HS-187 (used on Sachs 123) has 11/16" venturi

 

[mgr1]

I believe the 123 and 143 carbs were fuel governed but I am pretty sure 133s were not but I may be wrong about that

Gonna look at my 133S.

 

[mgr1]

133 super carb is governed.

If you have a 133S or 143 with a Sem ignition, the production code higher than 050989 is a limited coil. Maybe are these carb without governor.