We have a 6.25 /Briggs & Straton we have cleaned

most of the time you will not need new parts but the only parts out of the kit you will need is the needle valve (the part on the float) and the bowl gasket the first thing you do is take off the bowl then there is a pin that holds the float down pull it out with a pair of pliers i like one sided wire plyers then drop the carb and bowl in carb acid for 45 min i use chem dip u can get the gallon can for 25 bucks at autozone or advanced auto after 45 minutes pull out the carb and blow off wih air chuck from an air compressor blow out all the littlle holes they are inside and out reinstall float and needle valve reinstall bowl turn air fuel mixture screw all the way in till snug do not over tighten or youll damage it turn back out counter clock wise 2 turns reinstall carb thank me

Your float is stuck open in your carburator. If you are able, take the bowl off the bottom of the carb, then carefully remove the float. shake it to be certain it isnt full of gas..... if so, replace the ffloat with a new one.....the sliding pin should drop. If you have the model with an electrical wire going into a solenoid at the bottom, carefully disconnect the wire, (remove the negative ground from your battery first) then unscrew the solenoid........clean the needle on either tthe electric or manual as well as the seat........air works best.....no metal ever. Replace in reverse order.

you have a problem with fuel getting into the carb bowl. so either fuel line is stopped up or the needle valve hole is stopped up. should be a simple problem.

Sounds to me like the float needle valve in the carb is leaking. This will cause fuel to over flow out of carb, and will even get into the engine oil. Check to be sure that float is not got gas in it the can go bad. Also check float adjustment. Check needle and seat very carefully for dirt or wear. Just the slightest bit of dirt or wear can cause it to leak. Hope this helps.

Try replacing the float and needle. The float (floats) and pulls the needle up to let gas through to the carb. It will stay running as long as you press the prime bulb because this sends gas straight to the carb without going through the gas bowl. It's best to remove the carb and clean it then replace the float and needle

Surging is usually caused by a lean condition You can try to turn the mixture screw ccw about 1/4 to 1/2 turn. If this does not solve the problem your carb will have to be removed, cleaned thoroughly, and reinstalled.

If the float don't float, the needle valve stays open and gas runs into crankcase.

If float floats (has no gas inside) then the needlel is probably worn and needs replacement.

the float in the carb is stuck open, its flooding with gas. the gasoline is going past the rings and/or valves into the crankcase. you need to remove the float bowl and unstick and reset the float to specs, maybe a new seat and needle and change the oil before restarting.

Try changing or cleaning the air cleaner element...

take the bowl off the carb wiggle the float up an down and watch an see if the float value moves up and down with the float.if it don't that means your float value is stuck open. just take out the float and value, an clean the float value with 400 grit sandpaper, spray everything with carb cleaner, an put it back together