DetailsPilot jets for 19mm and 21mm carburetors Dell'Orto PHBG.
In some cases, the pilot jet is too big or to small, identifiable in your scooter's throttle response. If you start up your scooter and you can only go for about 10m at walking speed, the pilot jet is probably too small. If your engine starts to splutter at 1/4 throttle, the pilot jet may be too large.
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Name Dell'Orto Pilot Jets PHBG Brand Dell'Orto