5. B I N G J A W A C A R B S
Made for 1950’s – 60’s Sachs 502/2, 502/3
# # price Jawa# description
1 23 N/A 09-140 air filter
2 4 $28.0 21-050 screw cap M18x1 Bing Solo 25
3 00 N/A 35-922 float w/needle bigger than Encarwi
24 N/A 35-022 float only
26 N/A 47-120 float needle only
4 2 $2.50 45-502 adj nut M6x0.75
5 9 $22.0 46-042 jet needle 33mm 2-mark
10none 46-031 jet needle 31mm
6 1 $5.00 50-042 adjuster M6x0.75
7 8 $3.00 57-200 needle clip Bing Sachs 6
8 6 $10.0 60-300 throttle spring Bing Sachs 8
8a 7 $3.00 57-023 plate/washer Bing Sachs 7
9 20 N/A 61-469 air box clamp/clip
10 11 N/A 22-150 slide Ø14.5 “24” slot faces intake
10 12 N/A 22-151 slide Ø14.5 “32” slot faces intake
10 12 $28.0 22-sub slide Ø14.5 “16” Bing Solo 20
11 03 N/A 32-032-101 float lid w/seat
11a 5 N/A 65-720 seal ring
12 13 N/A 44-931-101/62 main jet
12 13 N/A 44-931-101/64 main jet
12 13 N/A 44-931-101/66 main jet
14 14 N/A 45-111 needle jet
15 15 N/A 45-112 needle jet
16 16 $2.00 65-143 seal washer 10 x 14
17 17 none 50-148 plug M10x1
19 19 $35.0 26-625 filter cap metal, not replica
21 21 N/A 65-775 seal
22 22 N/A 65-750 seal
25 N/A 40-420 clamp screws (2) on some versions
27 27 $1.50 49-020 cottor pin Bing Puch 31
28 28 N/A 40-430 locking screw
29 29 N/A 60-020 primer spring
31 31 N/A 48-925 primer/tickler
33 33 N/A 40-413 float screws (2)
34 34 $3.00 idle screw M5x0.8 Bing Puch 16
35 35 $3.00 idle screw spring Bing Puch 17
Bing 1/12/315
Bing 1/12/325
Bing 1/12/169
Bing 1/12/239 replica
Originally all metal, this carburetor and intake silencer was made for the early Sachs 502 vertical cylinder moped engine, 1,2, or 3 speed, kick start or pedals, from the 1950’s and 1960’s. The name Bing “Jawa” should be called Bing “Sachs 502”, since it fits those engines like a glove. Then Bing “Sachs” here should be Bing “Sachs 504/505 A”, to be more correct, globally.
There is no choke slide that blocks the air like on other Bings. Instead the primer holds the float down until gasoline overflows into the venturi. That provides the rich mixture for cold starting.
1960’s Sachs 502/2
Bing carb made for it
1965 Hercules moped
Sachs 502/2 (2-speed)
50’s Sachs 502/3 (3-spd)
Jawa used this classic German carburetor from 1979 to 1983, only after it was obsolete, and only on their highest power 1.7kW models. Those were the 40km/h (25mph) Supreme 2, type 207-394 (Babetta 207-504 in Europe), and the 50km/h (30mph) Supreme 3, type 207-392 (X 30 207-385 in Europe). All other Jawa Babetta models were 1.1kW or less, 40km/h (25mph) or less, with a smaller 9mm Jikov 2909 carburetors.
1982 Jawa Supreme 2
type 207-394 (Canada)
1979 Jawa X30
type 207-385 (for Euro)
Apparently most, if not all, of the USA models of “Supreme 2” and “Supreme 3” have the 9mm Jikov carburetors, not the 12mm Bing. Of about 20 Jawa Supreme 2 and 3, found on the internet, all had 9mm Jikov carbs. Only the two at left had 12mm Bings. Yet the Bing “Jawa” carb is in the later 207-300 series American Jawa Parts Catalog.