That little lead stopper can be carefully pried away and discarded.

i did that now . but the cord wont retract on its own...???

I took it all apart and feed the cord in but about 8 inches is sticking out?? Also the rpm is only at 2300 how can I adjust the rpm. I believe it should be 3000-3200? It's a b&s 6.0hp

I assume you have a tachometer.
The rpm usually can be increased by making the governor spring more taught.
Some units you may just have to bend the plate.Some have a second hole to make it more taught.
A picture or model number would help.

i wanna get a carb rebuilt kit . i just need the main jet gasket and float float bowl gasket possibly the air/fuel mixture gasket. does anyone know what the part number would be
engine series is ybsxs.1901vc

What's the bowl gasket part # and main jet gasket???? Are they the same size as tecumseh?