Dellorto Sha Carburetor Manual
Gurtner AR2-10-991 Gurtner AR2 series moped carburetors have a large flange, like a wall. It is for an “air box”, a noise silencing, fuel mist recovering, and air filtering chamber.
- DELLORTO TUNING MANUAL. This Manual provided for the sole use of Jet-Tech Motorsport customers. The throttle slide Is fltted In the main barrel and.
- On this page you will find all currently available parts for the Dellorto SHA14, SHA15 and SHA16 range. Slide Stop Screw Spring for Dellorto SHA 14 15 16 carburetors.
May 09, 2015 Decided to upload a video for a friend of mine Hal on how to take apart and clean Dellorto 14.12 Carburetor for Tomos moped. The location for idle hole was.
There are two (venturi) sizes, 10 or 12mm, and two styles, side or center mount. Center and side mount carbs look the same, but don’t interchange completely. Side mount carburetors have threads for an air filter stud, side holes for a center mount air box clip, and clamp to a 19mm intake pipe. The side mount float top cover has a vertical fuel hose spigot. A stripped bare side mount body, as is, will exactly replace a bare center mount body. Center mount carburetors have no threads in the stud hole, side holes for a center mount air box clip, and have removable sleeves, black 16 x 19 (for AR210), and white 17 x 19mm (for AR212). The sleeves reduce the precision clamp size from 19mm to 16 or 17.
The purpose is to be tamper resistant. The sleeves fit tight and are difficult to remove without damaging them. The center mount float top cover has a horizontal fuel hose spigot. A stripped bare center mount body, after threads are cut in the air box post hole, will replace a bare side mount body. Center mount early Some pre-USA years 1960’s or early 1970’s had no fuel hose inlet in the float top cover. Instead it was in the carburetor body just below the float top.
This type is in many Motobecane USA parts illustrations, but it was not used on any, or hardly any US models. In the illustration below it was edited out. Out of 47 original carbs, taken off once-living Motobecanes from around Southern California, none were this “center mount early” type with the fuel hose spigot in the carb body. MB carb mounts early (thin) and late (thick). New Gurtner floats with original needle lengths and positions.
Gurtner Floats: Of the three Gurtner floats, that look like they should interchange but do not, the AR2-type 14101 (Motobecane) Gurtner #4901 is the largest, followed by the AR1-type 14123 (for MB Model 7), and the smallest D-type 06437 (Peugeot) Gurtner #6437. Gurtner used to color code their new float containers green for Motobecane and red for Peugeot. Otherwise they are almost indistinguishable, unless together side by side. Float Service: On plastic types the needle is a press fit into the top and bottom holes in the bulb. The needle can simply need moving up or down. Or it could also need the tip straightened and/or sharpened/machined.
Or the needle could need to be replaced, if it has become too short or too bent. Any piece of 1.5mm brass rod, cut to these lengths, and machined to a cone tip, would restore the float. In addition, a gasoline-proof sealant should be used to seal the press-fit holes, as a precaution, or if gasoline enters the bulb. Table of Gurtner Floats. Gurtner Number Manuf.
Dellorto Sha Carburetor Rebuild
Number Bulb Material Needle Length Bulb Diam. 1950’s Gurtner AR10-511 A, AR, B, BR series (1949-59 Mobylette) —————————– A10-512 for Mobylette B10-516 for Mobylette Service AR8.7-525 for Mobylette BG AR10-511 for Mobylette AR10-501 Moby. With variator BA10-540 Moby. With Dimoby BR10-515 Moby.
Dellorto Sha Carb Tuning
Dellorto Sha Carburetor
With Dimoby Before 1960, all (or almost all?) Mobylettes had 10mm carburetors (or 8.7). So the speed and power were limited to be under about 25mph After 1959, some had 10mm carbs and went 25mph, and some had 13mm carbs and went 30-35mph. BA series (1959-65?