What is the tubes on a 4 stroke carb used for ?
- Thread starter nam70
- Start date
One is probably the drain tube from the float bowl and the other is an overflow tube.
If you are an old guy the carb is just a basic butterfly utility engine carb. Nothing exotic.
I assume you have a new kit out of the box.
How old is your grandson and what is he using the bike for?
Sensing port for what?
Yes as drain tubes they would hang down open.In jet engines, sometimes referencing signals are built in to fuel controls..Yes, the tubes are from the bowl and overflow.. Got everything in the kit. The engine will not idle. I'll look at the tank for trash.. I guess I'm relying on clean parts ,being new.. False assumption..Thanks so much for your reply..
More info from you. We are not psychic.
A pic of the left side of carb.
How long have you run the motor?
Did it ever run right?
Do you have the choke in the correct position?
Those carbs have small jets.
Captured under the black idle screw is a black plastic block that is the idle jet.
Also some carbs come with a brass plug blocking the air fuel adjusting screw that needs to be removed by drilling it out.
Which kit do you have?
What gearbox is on the motor?
Where did you buy it from?
