Nissan California B12 engine hesitation at 900 -1000 rpm

[Lance125]

i've recently changed my fuel filter, air filter, fuel pump, fuel lines.
the engine has been nicely overhauled, plugs changed, wires changed, timing has been corrected. in other words, the car idles and runs great...except that sometimes I experience a slight hesitation just when im about to accelerate or when i rev the engine. nakikita ko sa tachometer kung saan rpm sya naghe-hesitate.

ano kaya problema nito?...i've also had the carb cleaned. im not familiar with the nikki 21L, ito kaya problema? is this specific to the nikki 21L carb?

any input would be greatly appreciated

[macgyver1432000]

Lance125,
Napa-overhaul mo na ba yung carb mo? If yes, pinalitan ba ng mekaniko yung jet sa primary barrel nya? Kung pinaliitan, that's the cause why nag-hesitate ang makina mo, kasi ganung amount lang kayang ibigay ng nung jet. Kung maliit ang jet mo, mabagal ang acceleration mo but nakakatipid sa fuel consumption, and vice versa.

[Lance125]

walang pinalitan sa carb except the gasket. actually, wala na akong problema ngayon. changed my fuel from vpower to caltex gold...ayun nawala. labo