How does a choke solenoid work?
How does a choke solenoid work?
Its purpose is to restrict the flow of air, thereby enriching the fuel-air mixture while starting the engine. Once the engine is warm (from combustion), opening the choke valve restores the carburetor to normal operation, supplying fuel and air in the correct stoichiometric ratio for clean, efficient combustion.
How does an outboard choke work?
Originally Answered: How does a choke work on an outboard motor? Chokes in general work the same way. They close off the inlet to the carburettor so that when you crank the engine, you create a high vacuum which pulls more fuel into the engine.
What does a mercury solenoid do?
The solenoid on a Mercury outboard motor is used to actuate the starter. It takes considerable amperage to operate the starter, which in turn requires a large diameter wire to carry the load. There are four terminals on the solenoid–two large-diameter posts and two small-diameter posts.
Why does my boat motor only run on choke?
An engine that requires the choking ( partial or full ) after initial engine warm up is an indication that the engine fuel air mixture system is out of adjustment. Both the manual choke system and the manual primer system engines may experience this similar symptom of running only when the fuel mixture is enriched.
Why do 2 strokes need choke?
When a two stroke starts up, the choke cuts off a large portion of the air supply, causing more vacuum, so more fuel is burned at the start. On an auto-choke, this vacuum will open the manifold to let more air into the engine and they will also let more air into the engine the more heat that they produce.
Why does a 2 stroke run better with choke?
Dirty Air Filter A clogged air filter restricts the amount of air that can go through to the engine. This can cause it to run lean enough to need the choke on to run. Keeping the filter clean is just one of several important maintenance items that should be regularly checked or serviced.
Are Mariner outboards the same as mercury?
Mercury and mariner are the same company, both owned by the bruswick corp. Mariner was originally an australian licenced company that re-badged overseas engines and sold them locally under the ‘mariner’ brand name, mostly US made mercurys and a few Johnsons…
How do I know if my outboard motor solenoid is bad?
If there is no voltage, the solenoid is bad and needs to be replaced. If there is 12 volts then the starter is bad.
