Carburettor, HW-27A, X30

Tillotson HW-27A Carburettor for Iame X30 class. 

On the Carburetor there is two mixture screws. 
The Low is towards the engine
The High is towards the intake silencer

Basis settings: 
X30 Junior : 
(L) Low speed fuel mixture : 1H
(H) High speed fuel mixture : 1H and 20-25 min

X30 Senior :
(L) Low speed fuel mixture : 1H
(H) High speed fuel mixture : 1H and 30-35 min

Standard Tillotson 37g spring :  
pop off at 0.75 bar and sealing from 0.55-0.60 bar

We recommend changing the membrane kit about every 3 hours driving , and regular change of the fuel filter. 
The fuel filter should be mounted 10 cm before the carburetor.