How to replace connecting rod on ktm atv

Repair and replacement of the crankshaft on ATVs, checking the crankshaft sensor

You can buy a children's ATV in almost any motor show. However, in order for such a technique not to fail at the most inopportune moment, it must be carefully monitored. Especially behind such a node as the crankshaft.

The state of the crankshaft on the ATV directly affects the stability and serviceability of the engine of this vehicle. This component of motor vehicles is responsible for such an important process as the conversion of piston movement energy into torque. With damage to the crankshaft, the motorbike will immediately lose some of its power. In addition, the dynamics of the ATV also suffer, and the revolutions begin to “float”.

ATV crankshaft with timely repair and maintenance is able to serve the rider for quite a long time, this component rarely fails with proper handling of motor vehicles. Its complete replacement is required only when the owner ignored the signs of a breakdown for a long time.

The principle of operation of the ATV crankshaft

The crankshaft of the motorcycle engine consists of the following components:

The most commonly used crankshafts are either high-strength steel alloy or modified cast iron.

Despite the fact that the design of the crankshaft is quite complicated, its principle of operation is extremely simple and clear. Inside the combustion chambers, the process of burning fuel and emitting gases is carried out. As a result of expansion, these gases act on a piston mechanism, which in turn produces reciprocating movements. Then, the pistons transfer mechanical energy to the connecting rods, which are combined with them using a bushing or a special piston pin.

The connecting rod is connected to the crankshaft journal with a bearing, causing it to rotate. After turning, the crankpin begins to move in the opposite direction, producing a reverse movement of the crankshaft. After some time, the cycle repeats.

Position sensor malfunction

The following symptoms indicate a malfunction of this functional component of motor vehicles:

• difficulty starting the engine or even its absence;
• incorrect operation of the engine at idle;
• performance and power of the propulsion system of the device is significantly reduced;
• engine load increases markedly;
• lack of stability of revolutions, as well as their decrease or increase in random order.

Checking the crankshaft sensor on an ATV does not take much time or effort, but as a result, you will be sure which component of the motorcycle is out of order.

Among the existing ways to check the vehicle crankshaft sensor, it is worth highlighting:

• measuring the resistance of the winding of this component using a multimeter. To do this, you will need to switch the device to ohmmeter mode. If the data obtained differ significantly from the standard indicators, then this indicates a malfunction of the crankshaft sensor;
• measurement of the value of the inductance. In order not to get a false result, it is recommended to perform this procedure in a room with a temperature in the region of 20-22 degrees Celsius;
• using an oscilloscope to check the signal. For this method, you will need professional technical support, and therefore specialists in service centers usually resort to it. This method is the most accurate.

It is recommended to choose the most appropriate way to check the crankshaft sensors, depending on the equipment and skills at your disposal.

Do-it-yourself ATV crankshaft repair

Depending on the degree of wear and damage of the ATV crankshaft, it may need both partial repair and cleaning of components, and a complete replacement. Before you understand what kind of repair work will be required, the crankshaft must be disassembled. If you used the ATV quite carefully, and carefully monitored its technical condition, then most likely you will be able to get by with the restoration of the crankshaft. Only in extreme cases will it be necessary to completely replace this component with a new one.

When repairing or restoring an ATV crankshaft, the following procedures are usually performed:

• grinding, polishing and straightening the shaft components;
• pulley repair;
• channel cleaning;
• removal and replacement of bearings and balancing.

If you have the skills to carry out this kind of work and the necessary tools, then you can try to fix the crankshaft on an ATV on your own. However, it is much easier and more reliable to turn to the services of a trusted service center to complete this difficult task.

Another option to rid yourself of all the above problems is to go to a salon that sells children's electric ATVs. This technique does not have a crankshaft and, accordingly, will cause much less trouble.

05/29/2021 968

Repair of ATVs CFMOTO | Official dealer

Careful periodic maintenance helps keep your vehicle in the safest and most reliable condition. Control, cleaning, lubrication, adjustment and replacement of parts and components must be carried out according to the regulations and / or as necessary.

How often is maintenance required?
First service for a new ATV - after the first 500 km
Next service - every 1500 km

Performing maintenance procedures requires certain knowledge and qualifications, therefore it is recommended to carry out periodic maintenance in official dealerships that have all the necessary equipment and qualified specialists. The procedures for performing periodic maintenance in this manual are for reference only and may not fully reflect the entire list of tasks to be performed.

SERVICE DEPARTMENT IN MOTOPOLE
Serves and repairs ATVs since 2007. On an area of ​​1200 sq. m. spacious parking lot, where you can easily park with a trailer.
We carry out the following types of work:

• Complete maintenance of the ATV - from 6300 rubles
• Computer diagnostics - from 2500 rubles
• Diagnostics of the electrical system of the ATV (for troubleshooting) - from 2500 rubles
• Engine oil change with oil filter replacement - from 1250 rubles
• Oil change in the gearbox - from 600 rubles
• Spark plug replacement - from 600 rubles
• Replacement of the cooling system fluid - from 2500 rubles
• Replacement of brake pads - from 2500 rubles
• Suspension / universal joint injection - from 500 rubles
• Maintenance / replacement of the air filter - from 600 rubles
• Replacement of the fuel filter - from 1000 rubles
• Assessment of the state of the variator - from 2500 rubles

HARD SERVICE.

The service intervals indicated in the maintenance schedule below are given taking into account the average operating conditions of the equipment. If the ATV is operated in difficult conditions, the frequency of maintenance of the equipment should be increased.

• Regular use of the ATV in mud, water or sand;
• Continuous movement at low speed;
• Transportation of heavy loads;
• Continuous engine idle;
• Regular use of the ATV in low temperatures;
• Regular use of the ATV for short runs;
• Competitive or "sporty" driving style with high engine speed.

CAUTION

Check the engine oil level before every ride. An increase in oil level during operation in cold weather may indicate that deposits are accumulating in the crankcase. If the oil level starts to rise, change the engine oil immediately. If the oil level continues to rise, stop operating the vehicle and contact your authorized dealer for diagnosis and repair if necessary.

ENGINE OIL LEVEL CHECK
Regularly check the engine oil level, change it according to the maintenance schedule. It is recommended to use CFMOTO G-Motion 10W40 4T semi-synthetic oil in the engine; semi-synthetic oil CFMOTO G-Motion 5W40 4T; SAE 15W-40 API SG, in cold weather SAE 5W-30/40 or SAE 10W-30/40 API SG oils can be used.

1) Place the vehicle on a level, level surface;
2) Start the engine and let it run at idle speed for 20-30 seconds;
3) Stop the engine;
4) Wait a few minutes, allowing the oil to drain into the crankcase;
5) Remove the plastic inspection cover by pulling it from the lower left side, be careful not to break its fasteners;
6) Unscrew the oil dipstick, wipe it with a clean cloth;
7) Insert the dipstick into the oil filler hole, do not twist it;
8) Remove the dipstick again and check the oil level;
9) If necessary, top up the oil level. The engine oil level should be between the upper and lower marks on the dipstick;
10) Install the oil dipstick in place, tighten it;
11) Replace the plastic inspection cover.

ENGINE OIL AND OIL FILTER CHANGE
1) Place the ATV on a flat, level surface. If the engine has recently been running, then it is necessary to wait a while until the oil cools down and drains completely into the crankcase;
2) Place a container of sufficient volume suitable for collecting oil under the engine drain hole;
3) Remove the plastic inspection cover by pulling it from the lower left side, be careful not to break its fasteners;
4) Unscrew the engine oil dipstick;
5) Remove the engine drain bolt located on the bottom of the engine;
6) Completely drain the oil;
7) Install a new sealing washer on the engine drain bolt;
8) Reinstall the engine drain bolt and tighten to the recommended torque: 30 N•m
9) Remove the three bolts securing the oil filter cover;
10) Remove the oil filter cap;

11) Remove the oil filter;
12) Install a new oil filter;
13) Install the oil filter cover in place and fasten it with three bolts, the recommended tightening torque.
14) Fill with oil bringing its level to normal;
15) Install the oil dipstick in its original place;
16) Start the engine and warm it up for a few minutes. Check for oil leaks. If a leak is detected, immediately stop the engine, find out and eliminate the cause of its occurrence;
17) Stop the engine and check the oil level, if necessary, top up the oil level;
18) Replace the plastic inspection cover.