decrease the fuel flow in order to compensate for decreased air density.
decrease the fuel flow in order to compensate for decreased air density.
decrease the fuel flow in order to compensate for decreased air density.
By adjusting Mixture with Bosch KE3-Jetronic Mixture Adjustment
Gives a pilot control of the amount of fuel the carburetor or fuel injectors deliver to the air intake for a piston engine. The fuel and air, now a "mixture", are combusted in the cylinders. As altitude changes, air pressure changes. The pilot can optimize the fuel at different altitudes for the best engine power or for the least amount of fuel burn.
old gas or fuel mixture needs adjusting
Mixture strength in combustion refers to the ratio of fuel to air present in the air-fuel mixture. It can impact the efficiency and performance of the combustion process, with a stoichiometric mixture (ideal ratio of fuel to air) typically providing optimal results. Adjusting the mixture strength can affect factors like power output, emissions, and fuel economy in combustion engines.
You won't go far wrong using a 40/1 mixture and adjusting if you need to.
A lean fuel mixture occurs when there is an excess of air relative to fuel in the combustion process. This can be caused by factors such as a malfunctioning fuel injector, a vacuum leak, or improper tuning of the engine. Additionally, environmental conditions like high altitude can also lead to a lean mixture, as there is less oxygen in the air. When a lean mixture is present, it can result in higher combustion temperatures and potential engine damage if not addressed.
See the attached link below. The high altitude compensator opens at high elevation to allow extra air into a set of air bleeds in the carburetor to lean out the fuel mixture.
I think it happens because of the altitude and the fuel burn rate get slower as they clam higher 10,000 fleet
On the 1981 Yamaha XS 1100, the adjusting fuel and air mixture screws are located on the carburetors. Specifically, they can be found on the side of each carburetor body, typically near the throttle linkage. To adjust them, you may need to remove the carburetors from the bike for easier access. Be sure to consult the service manual for detailed instructions and specifications.
Small engine surging could be caused by issues such as a dirty carburetor, clogged fuel filter, or improper air/fuel mixture. To resolve this, you can try cleaning the carburetor, replacing the fuel filter, and adjusting the air/fuel mixture. If the problem persists, it may be best to consult a professional mechanic for further diagnosis and repair.