Showing posts with label Carburetor. Show all posts
Showing posts with label Carburetor. Show all posts

Wednesday, August 17, 2011

Causes Flooding In Carburetor


Carburetor flooding could be a cause of the fire. The fire resulting from fuel droplets that fall to the brake switch cable. Unfortunately, many riders consider it a trivial matter carburetor flooding. Moreover, symptoms such as problems with the electricity, time to replace the spark plugs,
or problem and the main-jet pilot.

There are several symptoms of flooding may be generally perceived. fit
morning or after the engine is turned off hard to make. Even if not turned on, the gas must be opened big.
Even if the engine was blazing, when the motor has gone the way but many times the symptoms will die if fully closed gas. The effect was most obvious problem during acceleration.

Carburetor flooding problems can also be seen directly. Carburetor dewy. Gasoline has a low temperature. Carburetor flooding makes the effect of low temperatures in the vicinity.

You need to know if the name of gasoline overflowed from the carburetor to the incident in any brand or type of motor. No gasoline was at maximum capacity because of age carburetor bowl a few supporting components are old.

Examples of buoys and rocket age has got to be replaced. If a float can not get up, gasoline could be a flood.
That is, there are two components in the carburetor bowl that can be considered to be the cause of flooding. buoys are too
low.

Suit the actual buoy must be checked every periodic servicing. It's work rules. Later be discovered whether the high setting is as recommended,

There is a handle to the carburetor type setting of the plate, but there are also plastic. If the plastic is faster wear and suits can be changed.
Settings buoys and checked the condition of the handle settings, try
look at the needle floats aka rocket. Components that work up and down so it's time could be
replaced.

Many factors worn needle. The material is a type of rubber which eventually wear out so so baseball can serve a maximum time of gasoline into the carburetor bowl.
Impurities from gasoline can also block the rise and fall of the needle valve. Yes, so make a flood.

Saturday, August 13, 2011

Carburetor Settings


This article I wrote from personal experience and from asking questions to the mechanical workshop, if my bike fitting service again.
Okay, I'll try to discuss about the problems of the carburetor on a two-wheeled vehicles (motorcycles) and a way of preference,

The main task of the carburetor is to mix Fuel + air (O2). Roughly the ratio of its range Fuel: O2 (air) is 1: 13-15. Anyway how do I let the machine can supply mix that much.
Why wear range, whereas the theory in a book burning books that ideal 1: 14?
The answer is to Because the condition of machinery & environments affect Fuel mixture settings: O2.

For example:
* The higher the compression the engine will get hot, the fuel supply means need more let the engine not broken.
* Humidity (moisture) environment increasingly high, the fuel mixture will be contaminated water, so the mixture getting poorer, have more gasoline MEANS.
* Low environmental temperature, engine temperature down, MEAN gasoline should be reduced so that the working temperature of the engine so ideal.
* Muffler (Free flow), rpm will be higher so the temperature will increase the engine needs fuel MEANS higher.
And many more parameters that must be considered including the design of inlets on the block by setting spuyer influential as a fuel distributor.
That theory basically.

Carburetor settings:
Carburetors have 2 spuyer:
One fruit of that act to channel the main jet fuel when throttle about half a lap up,
One fruit of that act to channel the pilot jet fuel from the gas rotation 0 degrees until full, only the effects of jet pilots could be said to be not very significant at full throttle and high engine rpm-me.
Tips are very simple setting the main jet and pilot jet.
Perform gas and wind adjustment to the maximum, if the engine screams at the highest setting is less shouted gas, the main jet is less and must be in Raise the score.
Try to Raise first 5 digits of the manufacturer's standard rate. After that, try to pull the gas. If the high gas looks like there is empty, or there is a pause in the supply of gasoline. "That's the main-jet is still lacking. Could Raise one step more, or be a 7 or 7.5 points. Usually, it is enough to rise high.
Conversely, if the time was not gassed smoothly even on a lap top. That means, increase the main jet is too large and should be lowered. Besides is not smooth, suit playing too big an impact as well wasteful gasoline. Gasoline is wasted and does not burn up. Can be seen in the spark plug. If the black very quickly, the setting is too big / not fit.

As for jet pilot suit, symptoms also detected with some things. The first symptoms, if the motor is difficult to live or once lived, but on lap down looks like there is empty. such as gasoline baseball road. That means the pilot jet needs to be increased, "
How to increase gradually as well, Just like the increase main jet. Any increase in the pilot and main jet engines each differ depending on type of carburetor, but from experience, setting the pilot and main jet motor baseball ever to 10.

Another thing with the influential settings including:
Venturi carburetor size,
Needles skepticism,
Wind suits,
Power jet.
 
Venturi carburetor bigger then the more air that passed sehingg spuyer greater need either the pilot or main jet so that the mixture can be fitted.
Continues when we raise ato spuyer shrink again?
Previously should know first gejala2 machine when lack of fuel and most fuel:

1. "Leaks" are symptoms such as loss of engine power due to fuel shortage reply
2. "Not well" is a symptom of who actually feels solid engine power just like muffled and sometimes accompanied by the sound of metal crash if the setting is too wet.
Means that the engine needs fuel leak, if not most fuel engine smoothly.

problems
1. Trouble Jet Pilot
Well here the problem occurs because the problem well-pilot jet:
* Motor that morning because it's so hard to live open gas leak continue to die, it means enlarging the pilot jet.
* Motor is the road but often tiba2 lost power when a low round n round gas jet pilot means naekin
* Motor is often over-heat as the road slowly means a big ask for a jet pilot
* Motor is not smooth in the run-down but good on lap top means the pilot jet greatness.
* Motor not use the choke when the morning & can immediately start
(this is also not normal) means that the pilot hrs down.
In conclusion, if there are symptoms leaking, high temperatures are relatively low diputaran who then asked naek jet pilot, and if there are symptoms is not smooth at low speed jg then the pilot must come down.

2. Trouble Main Jet
Continue to issue the main jet:
* Motor racing was brought up to finish the lap top on it goes so slow road less power coupled out of the smoke, MEAN temperature increases dramatically at high speed, then the main jet will get up.
* Breath motor on lap top is too long mean asking the main jet up.
* Motor noisy while others who normally MEANS engine temperature is very high when the lap top, then the main jet will get up.
* Motor sound is not fluent in the lap top just means the main jet'm down
etc.
In conclusion, if the motor sound is not fluent in the run-up means the main jet must come down, if the motor temperature is high in the run-up means the main jet will get up. (source)

Carburetor



Carburetors is a device that mixes air and fuel for an internal combustion engine. Carburetors are still used in small engines and in old cars or as they are designed specifically for stock car racing. Most cars produced in the early 1980s has been using computerized electronic fuel injection. The majority of motorcycles still use carburetors because lighter and cheaper, but in 2005 many new models are introduced with fuel injection.

Carburetors were first discovered by Karl Benz in 1885 and patented in 1886. In 1893 the Hungarian engineer named János Csonka nationality and Banki Donat also design a similar tool. Was Frederick William Lanchester of Birmingham, England who first experimented using the carburetor on the car. In 1896 Frederick and his brother built the first car that uses gasoline in the United Kingdom, single-cylinder-powered 5 hp (4 kW), and an internal combustion engine (internal combustion). Not satisfied with the final results obtained, mainly due to the small power generated, they rebuilt the machine, this time they use a two cylinder horizontally and also redesign their carburetors. This time they were able to complete the tour cars along the 1,000 miles (1600 km) in 1900. This is a step forward in the field of automotive carburetors use
Commonly used for automobile carburetor made gasoline until the late 1980s. After a lot of electronic controls used in automobiles, use of carburetor is being replaced by fuel injection systems because they are more easily integrated with other systems to achieve fuel efficiency.

Working principle, basically carburetor work using Bernoulli's principle: the faster air moves, the smaller its static pressure, but the higher its dynamic pressure. Gas pedal on the car actually does not directly control the magnitude of the flow of fuel into the combustion chamber. Gas pedal is actually controlling the valve in the carburetor to determine the amount of air that can flow into the combustion chamber. The air is moving in the carburetor that has the pressure to attract and fuel into the combustion chamber.
Most machines have had only one carburetor carburetor, but there also uses one carburetor for each cylinder owned. Even become a trend in Indonesia motorcycle modification of multi-use carbu (many carburetors) but this is usually only used as decoration without any technical function. Early generation machines use a carburetor upward flow (updraft), where the air enters through the bottom of the carburetor and then out through the top. The advantage of this design is that it can avoid flooding the engine, because the excess liquid fuel will spill out directly and not through the carburetor into the intake mainfold; Another advantage is the bottom of the carburetor may be connected with the oil line so that there is little oil to go into the air flow and used to wash the air filter; but using air filters made of paper using the washing of this oil is no longer needed today.
Beginning in the late 1930s, the flow carburetor down (downdraft) and flow laterally (sidedraft) began popouler used for automotive. (source)