Description
Racing carburetor Dell'Orto PHBG 21mm
Carburetor Dell'Orto 21mm PHBG DS Racing Black for 50cc scooters, motorcycles, mopeds etc. Reliable, powerful and sold at good value.
The carburetor is an essential element for the smooth operation of the engine. For this reason, the original carburetor is usually replaced by a larger one like a 21mm Dell'Orto carburetor when tuning your engine, i.e. increasing displacement from 50cc to 70cc or installing a Sport or Racing cylinder.
The main jet is 102, so we recommend ordering a 5mm jet set for optimum carburetor adjustment.
The PHBG Racing Black carburetor is slightly different from the PHBG standard version. The float chamber is made of metal with a central drain plug to make changing the main jet easier; the carburetor cover is made of aluminum and can be easily screwed on / off, which makes replacing the needle really easy.
Technical data carburetor Racing PHBG 21
- Carburetor 21 mm PHBG DS Racing Dell'orto rubber mounted
- Main jet: 102 (with 5mm thread)
- Idle jet: 35
- Choke jet: 50
- Float: 4 g
- Needle W 03
- Emulsion tube AU 262
- Diameter carburetor: 21 mm
- Connection intake manifold: 25 mm
- Connection air filter: 38 mm
- For cable choke or lever choke
- With oil port
- Without vacuum port
- Without preheater
- Carburetor slide cover angle: straight
- Reference Dell'orto : 02699
Note: The colour of the spark plug is a telltale on carburetor settings and helps to avoid damage to the engine.
Carburetor for scooters, motorcycles and mopeds
The smooth operation and optimum power output of your scooter, motorcycle or moped depends, among other things, on the carburetor, whose job is to create the right mixture of air and gasoline.
How the carburetor works
When the rider operates the throttle, the carburetor slide moves upwards, increasing the air flow that is sucked in through the air filter. The carburetor then mixes this air with petrol, creating a combustible mixture. This mixture is fed into the cylinder through the intake manifold and the reed valve.
The carburetor is equipped with jets to adjust the ratio of fuel and air and thus ensure an optimum air-fuel ratio. It is important that you adjust the carburetor settings to the setup of your engine.
Adjusting the Carburetor
Proper carburetor adjustment is critical for optimal engine operation and durability. Depending on the type of air filter, cylinder and exhaust of your setup, you will need to readjust main and pilot jets. To check the correct operation of the carburetor, you can refer to the color of the spark plug:
- White spark plug = too lean
- Black spark plug = too rich
- Brown spark plug = optimal setting
| Carburetor Dell'Orto PHBG 21 DS Racing Black w. lever choke | |
|---|---|
| Article no. | L-DEL02699 |
| Weight | 0,40 kg |
| Brand | Dell'Orto |
| Product type | Carburetor |
| Carburator type | PHBG |
| Diameter carburetor | 21mm |
| Air filter connection | 32mm |
| Manifold connection | 24mm |
| Choke | Lever Choke |
| Ports | With oil port, Without vacuum port |
| Colour | Black |
| Colour version | Black |
