Carburadores y piezas para Suzuki DR350

Motorcycle Carburetors and Parts for Suzuki DR350

As anyone who rides motorcycles knows, the carburetor is responsible for making sure your engine is receiving the proper fuel to air ratio to ensure peak performance. The carburetor itself is made up of many small parts that act together. However, if your Suzuki bike is experiencing symptoms including reduced engine performance, black exhaust smoke, backfiring, overheating, or difficulty starting, then it may be time to find a replacement carburetor.

How does a carburetor work?

In addition to controlling the correct ratio of fuel to air, the carburetor in your DR350 is also responsible for atomizing the fuel into vapor and delivering the fuel/air mixture into the engine. Here is a breakdown of the process:

  • Air flows into your Suzuki DR350’s intake where it passes through an air filter to remove dust and debris.
  • The air then flows down a pipe that has a narrow piece in the center called the Venturi. Airflow accelerates at this point causing the air pressure to drop.
  • Low air pressure causes gas to be sucked in from the float chamber where it vaporizes and mixes with the air.
  • The fuel/air mix leaves the carburetor, heads down to the cylinders, and powers the bike.
How is a carburetor constructed?

Four main pieces form the carburetor in your Suzuki DR350:

  • The float system is like a secondary tiny gas tank. Fuel flows in from the main tank filling the float chamber. As fuel levels in the chamber fall, a float connects to a pivot arm and sinks. The arm opens a valve causing more fuel to enter and fill the chamber. The process is similar to how a toilet works.
  • The Venturi pipe is named after the effect discovered by the physicist of the same name. It is a straight piece of steel pipe that is narrow in the center. It creates a vacuum that sucks fuel into the chamber.
  • The fuel jet on your DR350 bike, also known as the main nozzle, is a calibrated opening connected to the float chamber that determines how much fuel will move into the engine. It ejects fuel into the main well where air bleeds and baffles vaporize the fuel before it is pulled into the Venturi pipe.
  • The throttle valve is controlled by the accelerator. Its purpose is to mitigate the amount of airflow moving through the Venturi pipe which in turn controls how much fuel is being sent to the cylinders.
How do you replace a carburetor in your model DR350?
  • Detach the battery cables then remove the air filter assembly. Next remove the choke linkage, throttle, fuel line, and anything else that might be connected to the carburetor.
  • Loosen all the bolts connecting the carburetor to the bike and carefully remove the carburetor from the motor. Hold it level so as not to spill any fuel that might be inside it. Drain any fuel and remove the gasket from the intake manifold.
  • Clean the gasket with a hand cloth and replace it and install the new carburetor. Make sure to reconnect the battery last to avoid a potential fire hazard.