To 65 (carb). Adjusting the carburetor To 65

For a Long time, the domestic motorcycles, mopeds, and even snowmobiles had in design, the carb-To-62. However, there were identified a number of shortcomings of engineers in this model. Modern conditions demanded the improvement and modernisation of this device. Therefore, in the 90-ies of XX century was created the model 65 (carb). This device looks similar to the previous device. But his content is much different. This is reflected in the principle of operation, control and structure of varieties To 65.

Device carb-To-65

To adjust the carb model To 65, you first need to familiarize yourself with the device. Supply and maintenance of fuel level is as follows. Through the nozzle the fuel is supplied to the valve with an elastic locking washer. This unit builds on the tongue, which communicates with floats. They are made of plastic and connected to each other. Floats freely turning on an axis.

If the fuel was more of it, excess is drained through the drain hole of the float chamber. The model 65 (carb) is heated during operation. At the same time that the chamber pressure does not increase, it is associated with razbalansirovat channel.

The Following system, which has to be considered in the schema of the carburetor 65, the device acts as batching.

Metering system

The Ingredients in the dosage system are the main fuel jet, an atomizer, a channel supplying air and the needle of the throttle.

The Whole process of the system is as follows. From the float chamber the fuel enters the atomizer through the main nozzle. Under the action of thinning it rises through the gap between the needle of the throttle and spray. At the outlet of the fuel mixed with air that entered through the hole in the housing of the atomizer by the channel.

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The Carb To the 65 has the adjustment system of the engine. The needle throttle set at one of five positions. It carries out the operation of the engine at medium modes. But at a very high power should be taken into account during configuration, what is the carburetor model For a 65 determines the fuel consumption of the bandwidth of the main fuel nozzle.

Under the fuel tube installed lock washer. It provides attachment of the atomizer.

System idle

Another important system that must be taken into account when adjusting the carb To 65, the device is idle.

The system consists of a fuel tube, an air passage hole at idle, screw the quality and quantity of the mixture of the transition hole.

During operation of the motor at low speed emulsion is formed. It does this by raising the fuel tube under the action of the underpressure in the mixing chamber. Fuel connects with air that flows through the channel. The carb suggests To the 65 output of the emulsion at low speed only through the hole idle.

When the revs increase the vacuum in the area of the hole increases. Through it is also starting to do the same emulsion. So the fuel increases with increase in engine speed.

Starting System and your engine

In search of the answer to the question, how to adjust the carb To 65, you should familiarize yourself with the device start-up and preheat the engine.

On the carburetor TO 65C and 65B installed the starter with Autonomous drive on TO 65G and 65Ж - a cable-drive (found in motorcycles «Dnepr», «Ural»), and TO 65И TO 65Д - corrector-heater (often used in mopeds brand “IZH”).

Start with the offline drive is composed of a plunger, starter, needle, protective cap, channels, control rod, fuel well and the opening. The normal position of the device is closed.

Starting device with rope drive is very similar to the previous option, except for stock availability. The position of the plunger is regulated by the tether.

Concealer-the dresser is characterized by such a system of operation in which the fuel in the starter enters from the float chamber. Fuel consumption is limited by the nozzle. Such a device is often Soviet To the carburetor 65. “IL” can serve as an example of such motorcycles.

Installation and configuration

Before adjusting the new carb To the 65 it should be installed and configured.

First you need to remove the carb cap. The spring holds the throttle through the castle Igloo. It has one circular and two shaped holes. Round cut located in the centre, serves for fastening of a cable of gas. A t-shaped hole is required for mounting the propeller thrust.

Installing the carburetor on the engine, is connected to the throttle cable, fixed the cover.

The throttle should raise the throttle and check to see if this opens up the diffuser. These actions should be repeated several times. The diffuser should be free to open and close while binding.

Next, you screw in to raise the throttle so that between the flange bottom and the generatrix of the diffuser has a gap of 3 mm.

If the device is To 65 (carb) has a concealer, ityou should remove the Assembly and connect the cable to the piston. Then, install the node in place.

Next, you should adjust the position of thrust cables housing so that their free course was 2-3 mm.

The Screw needs to be turned until it stops, then loosen it by 0.5-1.5 turns. The fuel hose joins the fitting. Fuel should not leak at the joints.

Then he turns peak-starter and scrolls the crankshaft by 3 turns. The ignition comes on and is running. After warming up the starter or the corrector can be disabled.

Adjusting the fuel level

Adjusting the carb To 65 is setting the fuel level. This instrument turn over and remove the bottom of the float chamber. Further replaced by the distance from the connector to the line that splits the float into two parts.

This distance is usually 13 mm with a deviation in both directions by 1.5 mm.

If the carb size in the frame doesn't fit, you must bend the tab of the float in the desired direction.

Sometimes setting carb-To-65 performed correctly, but he begins to "pour". This means that leaky float.

To Test this theory just. Need to dial in a bath of warm water and immerse the float for a minute or longer. If bubbles appear, then the float is faulty.

Adjusting the power enrichment

Before adjusting, whether it's a carb model To 65 motorcycle "Ural", "Dnepr", snowmobile "Buran" or other vehicles, the engine should be warmed.

Then set the minimum steady idle speed. This screw should lower the throttle. When you need to increase the number of turns possible. The screw is thus rotated in one direction or another.

Slow speed again decrease and increase. This should be done 2-3 times.

After the operations should check how the engine reacts to the position of the throttle. To understand how to tune the carb To 65, you should determine the required level of enrichment of the fuel mixture for the engine.

To do this experiment. The throttle opened abruptly. If the motor stalls, then the mixture should be enriched. To do this, tighten the screw of quality of a mix in 1/4 or 1/2 turn.

Glohnuschey motor when sudden closing of the throttle suggests the need to make the mixture poorer. The screw of quality of a mix you need to build a 1/4-1/2 turn.

Adjusting the quality of the mixture in use

Adjusting the carb To the 65 in operation is performed by moving the needle of the dispenser relative to the castle. This should be done in a certain order.

Metering needle is set to middle position. For the implementation of a lean condition, the lock moves upwards. In this case between the cone dispenser and the wall of the atomizer, the gap becomes smaller.

Offset of the lock down will lead to the enrichment of the fuel mixture.

The message settings will be the color of the insulation of the electrode of the spark plug. Should pay attention after 30 km. Under normal operating conditions its whitish color indicates the poverty of the mixture. The insulator is dark brown with traces of soot speaks of the need to impoverish the mixture.

Adjusting the carburetor of the motorcycle "Ural"

For example, adjust the carb To 65 you can consider this procedure on a motorcycle "Ural".

First we need to remove the air suction. Then with a flat head screwdriver to twist the screws. The carburetor 65 of the motorcycle "Ural" requires unscrewing screw at 1 turn.

After that you need to set the backlash on the cable. It needs to be the same and equal to about 3 mm.

Warming up the engine, start to tighten the idle screw to the lowest sustainable speed. Then using the screw of quality of a mix you should find the maximum speed. The procedure is repeated two times. The carburetor is configured.

Sync carb

After setting the carb To 65 (Ural) have to be synchronized. It can be done using a tachometer. In the absence of such equipment synchronization can be performed on the speedometer.

This motorcycle is placed on a stand and start the engine. Exhibited 4th gear. With one of the candles off the cap and bring the speedometer up to 50 km/h the throttle is fixed with a bolt.

Alternately turns on one cylinder and the other off. The length of the ropes is adjustable with fittings. Thus achieve the same rate of speed.

The plug boot when removing it necessarily is grounded, carotida on the weight of the motorcycle. Thus it is possible to adjust carburetor "Ural".

Adjusting the carb To 65 motorcycle “IL”

More than a simple adjustment done by a motorcycle “IL”, which has a corrector-a concentrator.

First, the engine warmed up. Then set low, but stable speed of the motor. To do this, rotate the screw which adjusts the position of the throttle.

Then gradually increase to high rpm using the idle screw. The procedure is repeated 4-5 times. When the engine speed is gradually reduced. After that, the correct setting is checked jerky opening and closing of the throttle.

The Engine is notshould stall and make sharp jerks.

For this model carb is also allowed to adjust in the mode of operation by moving the dispensing needle up to richen the mixture and down to the opposite effect.

This kind of customization is one of the easiest. Therefore, to perform all actions according to the instructions, one can independently.

After Reviewing the device, method of installation and configuration of this element of the motorcycle as 65 (carb), each user can adjust his work. For each type of vehicle should comply with its technology settings and check the operation of the carburetor. The correctness of the implementation of the actions depends on the durability of the vehicle.