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Hello Everyone,
Mr. Alain CHARLES from La Canéda, France mailed me some material on the SIMAR 40 a 5 h.p. model. The carburetor field maintenance instruction is fantastic, I never knew what the two bosses on the side of the bowl were for. The carburetor parts breakdown can be used to locate spare parts for all types. The text is as SIMAR translated it except I corrected some spelling. Description - Designed more particularly for the SIMAR Rototillers, the EXAIR carburetor has the advantage of precluding every possibility for dust to penetrate. The float chamber situated in the axis of the carburetor body maintains even fuel level whichever the incline of the Rototiller. The single jet arrangement makes for simplicity of upkeep and correct maintenance of relation between feed for idling and full load. |  |
Changing or cleaning jet - Remove locking spring 8815 by expanding its two looped ends (see fig. 1). The cover 8812 can then be removed together with barre and bowden wire. Access is thus obtained to the jet tube 8814 which can be removed by unscrewing same by means of the locking spring 8815 or of a penny piece (see fig. 2). The jet itself 5292 is situated at the lower extremity of the jet tube 8814. It can be removed by inserting its square head between the two bosses provided on the side of the float cup 8809 (see fig. 3). To clean the bore of jet 5292 use a hair or any other non metallic wire. The size of the bore of jet 5292 is engraved on one of the faces of the square. Draining float chamber - This operation is to be carried out if the engine has been allowed to stop otherwise than by cutting out fuel supply. Unscrew knurled tap screw 8818 situated underneath float cup until same becomes loose and drainage takes place. N. B. : The tickler 5284 when pushed depresses the float and flood the carburetor. It is to be used when starting engine from cold. |
SIMAR Model Types |
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24A - 25A |
All |
20C-21C 35C |
Carburetor |
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913080A |
Carburetor |
916226 |
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Carburetor |
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913385 |
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Union piece with needle |
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E-6 |
Nut |
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RG-6 |
Spring Washer |
E-8 |
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Nut |
RG-8 |
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Spring Washer |
V.830 |
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Screw |
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F-1008 |
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Split pin to tickler |
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4866A |
Fixing stud |
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5283 |
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Valve spring |
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5284 |
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Tickler to float |
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5285 |
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Spring to tickler |
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5287 |
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Float (Schwimmer) |
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5292 |
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Jet |
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5298 |
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Fibre ring to float chamber |
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8809 |
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Float cup |
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8812 |
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Cover |
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8813B |
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Throttle valve |
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8814 |
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Jet tube |
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8815 |
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Locking spring |
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8816 |
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Jet seat |
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8817 |
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Cup bolt |
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8818 |
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Tap screw |
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8819 |
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Joint washer |
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8820 |
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Fibre washer under float chamber |
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8821 |
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Fibre washer to drain screw |
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8823 |
Body of carburetor |
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13386 |
Petrol-union |
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13387 |
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Nut |
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1338 |
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Filter gauze |
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13389 |
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Fibre washer |
16169 |
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Petrol-union |
16226 |
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Body of carburetor |
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Control Lever |
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Ass.177A |
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Control lever complete |
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E-6 |
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Nut |
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8831 |
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Fixing tige |
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8850 |
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Control lever |
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8851 |
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Control body |
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8852 |
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Spring washer |
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8853 |
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Control cap |
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8854 |
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Control bolt |
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Cable with wire |
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E-6 |
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Nut |
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5278 |
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Cable adjuster |
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8115 |
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Cable nipple control lever |
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8116 |
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Cable nipple carburetor |
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Ass.388 |
Complete for type 20C-21C |
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Ass.603 |
Complete for type 56A-57A |
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Ass.911065 |
Complete for type 35C, 40A-B, 24A-25A |