Description
Racing carburetor dellorto PHDG 18mm
New release 2024 from carb specialist Dell'Orto: the PHDG carburetor. The Dellorto PHDG was specifically designed for high-performance 2- and 4-stroke engines.
This is the PHDG AN variant, which is primarily intended for karting, other sizes and variants can be found here: Carburetor Dellorto PHDG. With homologation (054-CA-15) by FIA KARTING INTERNATIONAL CHAMPIONSHIPS.
INFO: AN refers to the variants with perforated emulsion tube (2-stroke), AU with closed emulsion tube (4-stroke). However, this classification is not binding, as both variants function across engine types; all PHDG carburetors therefore have a 2-stroke oil port regardless of the type of emulsion tube.
Dellorto PHDG carburetor
The round, flow-optimized passage ensures a high air flow rate, direct throttle response and a noticeable increase in power. The special air intake profile delivers direct response as soon as the throttle is opened.
The aluminium body with aluminium float chamber is lightweight, low-wear and offers good heat dissipation; the anodized carburetor cover and float chamber screw plug round off the racing finish.
The aluminum throttle slide with special surface treatment reduces wear and ensures particularly smooth, precise operation.
The carburetor is equipped with a vacuum and oil port, with the oil connection fitted with a check valve to prevent dripping.
It has a 46 mm air filter connection as standard, which can be expanded to 60 mm using an adapter.
Specifications dellorto PHDG 18 carburetor
- Type: PHDG
- Diameter: 18mm
- Main jet: 78
- Idle jet: 70
- Needle: W 26
- Emulsiontube: AN 262
- Connection: Flexible (rubber flange)
- Connection air filter: 46mm (60mm with adapter)
- Connection intake manifold: 25mm
- Without vacuum / oil port
- Choke: Manual (lever / push button, can be converted to cable choke)
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 Dellorto PHDG 18 AN karting | |
|---|---|
| Article no. | L-DEL9860 |
| Weight | 0,43 kg |
| Brand | Dell'Orto |
| Product type | Carburetor |
| Carburator type | PHDG |
| Diameter carburetor | 18mm |
| Air filter connection | 46mm |
| Manifold connection | 25mm |
| Choke | Lever Choke |
| Ports | Without vacuum port, Without oil port |