Want this question answered?
inboard gasoline
Internal combustion engines can backfire. In order to prevent flames from the backfire causing a fire on board, an approved backfire flame arrestor must be attached to the air intake with a flame tight connection.
Internal combustion engines can backfire. In order to prevent flames from the backfire causing a fire on board, an approved backfire flame arrestor must be attached to the air intake with a flame tight connection.
A carburetor air intake screen.
Normally from an engine backfire. The plug fires when the intake valve is partially open which will explode the fuel in the intake and carb.
If it backfires thru the intake/carb the spark arrester prevents this. It is the metal looking air filter on carburetor...
you did't specify if it is carburetor or fuel injection.if the backfire is out the exhaust or through the intake. if out the exaust it is usually ignition and if it is through the intake/carb or the plenum/fuel injected it usually is a lean or fuel starvation...
A leaking spark plug wire can cause a backfire out of the intake, but the most common cause is a burned intake valve. A burnt intake valve will allow leakage during the compression stroke back through the intake causing a popping backfire out of the intake manifold.
Follow the intake air plenum from the air filter. It connects to the carburetor. The carburetor is mounted on the intake manifold.
Improper engine timing usually Could also be leaking / damaged intake valve(s) or on an older engine with a carburetor if the accelerator pump is bad it will spit back when throttled up quickly
To the intake manifold.
On the intake manifold