Walbro Carb Specs
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HDA HD


The HDA series are medium size carburetors designed for engines from 30 to 60 cc.

Technical Data
Principal measurements in mm: Choke Bore

Venturi Ø  

Throttle Bore
  17.44  11.11  15.84 
  17.44  12.7  17.44/15.84 
  19.01/17.44  13.49  17.44 
  19.01  14.29/15.08  19.00 

 

22.19  15.88/16.77 

20.56/19.01 

Mounting holes  31 mm. between centers

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Walbro Carburators
Walbro Carb Specs

WB


The WB series  is suitable for engines from 100 to 150 cc displacement and more. 

Technical Data
Choke Bore Venturi Ø  Throttle Bore 
  28.6  20.64  25.4 
  28.6  21.43  25.4 
 28.6  23.84  25.4 
 32.0  25.40  28.0 
bullet
Mounting holes, distance between centers: 46 mm.

WG
WG
The WG series are designed for 100 cc displacement or larger 

Technical Data

bullet
Casting available in the following dimensions, in mm:
 Choke Bore Venturi Ø Throttle Bore

 

 31.921.67 26.7
 30.3 21.67 28.14 
 31.9 21.67 26.7 
 30.3 21.67 

26.7





 

bulletMounting holes, distance between centers: 46 mm.
WJ
WJ

The WJ series have been designed for professional applications from 50 to 100 cc displacement.

Technical Data

bullet
Casting available in the following dimensions in mm:
 Choke Bore Venturi Ø Throttle Bore

 

 22.19 14.29/15.08 19.01 
 22.19 15.88 20.56 
 22.19 16.67/17.46/18.26 21.43 
 23.38 19.05 21.43

 

 

bulletMounting holes, distance between centers: 31 mm.

WT WTA WA

The WT/WA series are designed for engines from 14 to 50 cc. 

Technical Data

bulletPrincipal measurements in mm:
Choke Bore 

Venturi Ø

Throttle Bore
  19.05  6.35/7.14  11.1 
  19.05 7.94 14.29/12.7
  19.05 9.53 14.29
  19.05 11.11/12.7 15.84
  19.05 11.11/12.7 15.84
  19.05 13.49

17.44

 

 

 

 

 

bulletMounting holes, distance between centers: 31mm.
WYA
WYA

The WYA is a metal-bodied, rotary valve carburetor designed for stratified scavenging  20 to 5 0 cc engines

Technical Data
bullet

Dimensions, in mm:

 Choke Bore: 13.2 to 15.3 
 Venturi Ø: 7.0 to 15.0 
 Throttle Bore: 9.0 to 15.0 
bulletMounting holes, distance between centers: 31.0 mm.
bulletFixed main jet.

WYB


The WYB is a metal bodied rotary valve carburetor designed for 2 stroke engines less than 25 cc and 4 stroke engines less than 30 cc. This model is specifically designed for hand held 4 stroke engines featured on many power tools.

Technical Data

bulletDimensions, in mm:
 Choke BoreVenturi ØThrottle Bore
 12.0 8.0 to 9.0 9.0 
    

 

 

bulletMounting holes, distance between centers: 31.0 mm.
 
WYJ
WYJ


The WYJ is a metal-bodied, rotary valve carburetor designed for engines with 20 to 50 cc displacement.  

Technical Data

bullet
Dimensions, in mm:

 
 Choke Bore Venturi Ø Throttle Bore 
 17.0 9.0 to 12.2 9.0 to 12.2 
bullet
Mounting holes, distance between centers: 31.0 mm.

WYK
WYK

The WYK is a metal-bodied, rotary valve carburetor designed for engines with 20 to 50 cc displacement. 

Technical Data

bulletDimensions, in mm:
 Choke Bore Venturi Ø Throttle Bore 
 17.0 9.0 to 12.2 9.0 to 12.2 
bulletMounting holes, distance between centers: 31.0 mm.
bulletFixed main jet.
WYL
WYL

The WYL is a metal-bodied, rotary valve carburetor designed for engines with 15 to 25 cc displacement. 

Technical Data
bullet
Dimensions, in mm:

Venturi Ø: 7.5 to 9.0 
 Choke Bore: 12.0 
 Throttle Bore: 9.0 
 
bulletMounting holes, distance between centers: 31.0 mm.
bulletFixed main jet.