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Carburettor -YSN PHBH 28 BS- CS=34mm - with vacuum/oil connection

YSN8569
€78.90 *

incl. VAT plus shipping costs

In stock: can be delivered or picked up in the store
P For this item you get fidelity point/s
The YSN PHBH 28 carburettor corresponds almost in every detail to the original. With the...Continue reading

Description


The YSN PHBH 28 carburettor corresponds almost in every detail to the original. With the manufacturer YSN we have therefore a very good and reliable manufacturer at our side, who continues to produce the legendary carburetors for us. The quality is absolutely comparable with the Italian original and the parts are also 99% interchangeable only the throttle slides are guided by a slightly longer centering pin in the carburetor. If you want to use Dell'Orto gas slides, you can simply take this pin back in the aluminium casting.

A big advantage of the PHB carburettors is their easy and good tunability as well as their insensitivity to weather changes. The PHBH shows quickly and clearly if the mixture is too rich or too lean. A Mikuni or Keihin carburettor runs mostly too lean tuned still surprisingly well, which can express itself unfortunately also sometimes fast in a jam.

On most scooter engines the following basic spraying for the PHBH series has proven to be a good starting point:

  • Atomiser: AV264
  • Needle: X2 or X3
  • Idle jet: 55
  • Main jet: 120-145
  • Throttle: 30 (bold) or 40 (leaner)

If problems with the fuel supply are suspected, it is advisable to convert to a larger float needle valve (#250).

BS carburettor = adjusting screws in suction direction left

 
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