Carburetor YSN 30 BS type PHBH with lever choke
Description
PHBH carburetor 30 BS with lever choke
The YSN 30BS carburetor type PHBH is particularly suitable for tuned Vespa models and maxi scooters as well as for geared mopeds with a displacement of over 100 cc and offers precise and reliable response.
Main features of the YSN carburetor:
This model features a manual folding choke, ideal for direct control during cold starts. Its design is based on the popular PHBH carburetor, ideal for intermediate to advanced tuning.
Technical data 30 mm PHBH carburetor:
- Intake manifold connection: 36 mm
- Air filter connection: 42 mm
- Main jet: M6 #125
- Idle jet: M5 #55
- Choke jet: M5 #70
- Float: 6.5 g
- Slider: 40
- Needle: X2
- Emulsion tube: AV264
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 YSN 30 BS type PHBH with lever choke | |
|---|---|
| Article no. | SP-49089 |
| EAN | 4057237650375 |
| Weight | 0,43 kg |
| Brand | Standard Parts |
| Product type | Carburetor |
| Carburator type | PHBH |
| Diameter carburetor | 30mm |
| Air filter connection | 42mm |
| Manifold connection | 36mm |
| Choke | Lever Choke |
