WT-644 Carburetor
WT-257 Big Bore Carburetor
WT-813 Big Bore Carburetor
Walbro WT-644 Carburetor
Venturi Bore: 12.7mm
Venturi Bore: 12.7mm
Venturi Bore: 12.7mm
Throttle Bore: 15.84mm
Throttle Bore: 15.84mm
Throttle Bore: 15.84mm
Primer Bulb: Yes
Primer Bulb: No
Primer Bulb: Yes
Choke: Yes
Choke: No
Choke: No
Mounting hole’s distance between centers: 31mm
Mounting hole’s distance between centers: 31mm
Mounting hole’s distance between centers: 31mm
Accelerator System: No
Accelerator System: No
Accelerator System: Yes
     
BZ2168
644 Carb
$39.95
BZ2025
WT-257 carb

$44.95
BZ2038
WT-813
$54.95


Starting point carburetor settings (High/Low)
WT-257
WT-488
WT-603
WT-644
WT-813
H – 1 turn
L – 2 turns
H – 1 1/8 turns
L – 1 1/2 turns
H – 1 1/2 turns
L – 1 5/8 turns
H – 1 1/2 turns
L – 1 1/2 turns
H – 1 1/2 turns
L – 1 1/2 turns