Setting timing marks for moped alpha

Checking the timing belt by marks on the Delta EX 50 moped

engine 1P39FMB (139FMB)

Comments from those interested:

Roman Khimchenko 2 weeks. reverse And if it doesn’t match WHAT to do

Vladimir Voronov 2 weeks. reverse Set it to match.

Valentin Sidorov 1 month ago Thanks for the video. Features of the engine timing The valves on the Alpha moped are made How to set the ignition. Everything is described carefully and clearly, in Russian. 598 Removing the generator rotor on an alpha alpha moped. how to remove Remove the generator. How to replace the starter chain on an alpha moped video. I can’t remove the rotor on the alpha moped, there is no seal on the market, I haven’t found it, so I’m thinking about the best way to remove it, has anyone removed it and in what ways. If you continue to make videos like this, I will be all for it!

Vladimir Voronov 1 month ago This is nice. )) And of course there will be new videos, just wait a little.

Danil Pugachev 1 month ago no, we don’t even know where the head with the boiler is attached, we installed two gaskets, we thought it wouldn’t knock, the valves knock loudly when you turn the starter, okay, thanks for the hint

Vladimir Voronov 1 month ago Yes! Another thing, don’t install two gaskets; it won’t make things any better; an increase in the combustion chamber will result in a drop in power.

Hunter38767 3 weeks reverse And if you have a 50cc head and a 72cc piston, then you need to change the head.

Hunter38767 3 weeks reverse Two gaskets are not allowed, look, the valves may be overtightened, unscrew the two caps on the head, and look at the gap, it should be 0.05 on the feeler gauge. But if they hit the piston, then there is no gap.

Sergey Vasiliev 1 month back Vadim, thank you, I read a lot of useful information, thank you, I will be glad to see new videos on alpha, I’m really looking forward to it

Timing tags moped alpha

Checking the timing belt by marks on the Delta EX 50
moped engine 1P39FMB (139FMB)

Comments from those interested:

Roman Khimchenko 2 weeks. reverse And if it doesn’t match WHAT to do

Vladimir Voronov 2 weeks. reverse Set it to match.

Vladimir Voronov 1 month ago This is nice. )) And of course there will be new videos, just wait a little.

Vladimir Voronov 1 month ago Yes! Another thing, don’t install two gaskets; it won’t make things any better; an increase in the combustion chamber will result in a drop in power.

Hunter38767 3 weeks reverse And if you have a 50cc head and a 72cc piston, then you need to change the head.

Sergey Vasiliev 1 month back Vadim, thank you, I read a lot of useful information, thank you, I will be glad to see new videos on alpha, I’m really looking forward to it

Arkady Novoselov 1 month back, well done, thank you for you!

How to Change the Timing Chain on an Alpha Moped

Checking the time of Delta EX 50 mopeds

Roman Khimchenko turned 2 weeks ago

And if that doesn't answer what to do

Vladimir Voronov 2 weeks. flipped over

Valentin Sidorov 1 month ago

Thank you for the video. Everything is described in detail and clearly in Russian. If you continue to make videos like this, I will be all for it!

Vladimir Voronov 1 month ago

This is good. )) And of course there will be new videos, just wait a minute.

Danila Pugacheva 1 month ago

no, we are not even where the head with the boiler is attached; two installed gaskets; This was spectacular; does not wake up the valve; it knocks gray when you turn on the starter, thanks a lot for the tip

Vladimir Voronov 1 month ago

So! Further, do not install two gaskets, it will not be better, the combustion chamber will increase due to a drop in power.

Danila Pugacheva 1 month ago

LITTLE BIG. FARADENZA (official video)

Opened 3 days ago

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How to set the timing phase and what is ignition timing

Our VKontakte group In this video I will tell you how the ignition timing differs from. A LITTLE BIG: : com/littlebigbandofficial soundcloud: soundcloud.com/littlebigrussia vk: vk.com/littlebigband twitter: twitter.com/LITTLEBIG_BAND website: thelittlebig.com Send by email: Booking (Ru, USA): Booking (Europe): 33 608 815 807 Fabristi www.base-productions.com Music: Ilya Prusikin, We Love Lyrics: Ilya Prusikin, Alina Pasok, Eldar Dzharakhov LITTLE BIG production: Idea: Alina Pasok Script: Alina Pasok, Ilia Prusikin, Eldar Dzharakhov Director: Alina Pasok, Ilya Prusikin Co-director: Yuri Muzichenko Additional director: Alexander Pavlov Executive producer: Anastasia Antipova Line producer: Ekaterina Mironova Stylist and art director: Vadim Ksenodokhov Stylist assistant: Rada Sokolova Location: Dmitry Chernov Coordinator: Ivan Veselov Assistant: Eduard Gaisin, Roman Konshin , Ivan Savchenko Casting: Anastasia Antipova, Vasilisa Lubenko Actor coordinator: Vasilisa Lubenko MUAH: Masha Francisch Assistant Muah: Anna Sokolova Hairdresser: Svetlana Tilishevskaya Gaffer: Stas Gerasimov Lighting technician: Pavel Ilyuk, Igor Savchenko Editing: Alina Pasok, Ilya Prusikin Color: Dmitry Novikov VFX, CG: Maxim Semenov Sound design: Stas Kravets

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The ignition adjustment on the Alpha moped is carried out similarly to the Racer and Delta models, which in the vast majority are equipped with the same power units.

Many owners of these mopeds experience difficulties in this matter, since the specifics of the engines of Chinese mopeds are quite different from the usual Soviet and post-Soviet models.

Alpha's electrical system consists of:

The system itself operates on a single-wire principle: the power source is connected to the consuming node by only one wire , while the functions of the second are assigned to the metal parts of the moped and the steel frame itself.

When wondering how to set the ignition on an Alpha moped, motorcyclists act on two principles:

Correct ignition setting implies a symbiosis of both points. It is important, following all the technical requirements of the manufacturer, to adjust the operation of the starting system according to your personal needs. The exclusive use of manuals (even official ones) is problematic due to constant modifications of the electrical systems of models produced from the assembly line.

Anyone, even a beginner, knows that a precisely set ignition is the key to controllability and high dynamics of a vehicle. In the case of Chinese mopeds, namely Alpha, Delta and Racer, the manufacturer stipulates that the ignition is set exactly from the factory and cannot be adjusted. But in practice everything is somewhat different.

How to tension a chain on an Alpha moped - step-by-step instructions

To simplify access to the necessary components, first remove the rear left passenger footrest. The moped must be placed on the center stand. It is also advisable to unscrew the bolt and remove the exhaust pipe. If this is not done, the ratchet heads cannot be used.

Next, take two keys - 17 and 14 mm. You need to unscrew the nut to loosen the wheel axle. The nut is unscrewed, but not completely. With the second key you need to hold the axle on the reverse side so that there is a stop. If you don't hold it on the reverse side, the axis will spin.

Now you need to loosen the nut located on the other side using a wrench with a diameter of 24 mm.

Using a wrench with a diameter of 10 mm, tighten the chain tension bolt. But the tension should not be too strong.

The rear axle is weakened. You need to make sure that the teeth of the driven sprocket do not fall on the edge of the chain. To do this you need to spin the wheel. When the teeth come in from the right, you need to tighten the bolt a little using a 10 mm wrench. If they enter from the left, it is necessary to loosen it, and if from the right, then, on the contrary, tighten it.

Now you need to tighten the wheel axle with 24 and 17 mm wrenches. The second bolt is tightened with a wrench with a diameter of 14 millimeters. The chain is tight, all that remains is to install the left step and protection.

To properly tension the chain, you will have to align the marks on the sprockets. There are risks and sticks on the suspender. These marks are applied on both sides.

You need to try to ensure that the risks on the right and left coincide. If these marks are not aligned, the wheel will not stay level. Naturally, it will also spin incorrectly. As a result, the rubber will begin to wear out intensively on one side. Therefore, it is important to tighten the nuts on both sides.

For more accurate tightening, it is important to remove the cover covering the chain. Otherwise, there is a chance that it will be pulled too tight. After tensioning, the brakes may also need to be adjusted.

Useful visual video on how to tighten the chain on an Alpha moped:

How to correctly set timing marks on an alpha moped. The only video that tells everything. —

How to correctly set timing marks on an alpha moped. The only video that tells everything. If it helps, thumbs up. After I surfed YouTube and realized that no one explains how to set the timing marks correctly, watch my video. Alpha 72cc with transition to 90cc. max speed 85 km/h 9 thousand according to tachometer 13/41

scooter repair. creation of motorcycle projects. inventions. tests. culibinization. service. Video reviews. Test Drive. scooter repair. creation of motorcycle projects. And

A little about spark plugs and chain tensioners from personal experience. It will be useful for those who often clean spark plugs from carbon deposits, as well as for those who like to put a bunch of washers and ha

VK group-https://vk.com/public117276594 soon there will be rides, reviews, and more repairs..

In today's lesson we will tell you about setting up the carburetor on the Alpha The WinDay Show moped VKontakte: https://vk.com/thewindayshow

Foam filter for Alpha moped https://goo.gl/MF6F3b Digital Thermometer 1 - http:/

How to install the cylinder and adjust the timing chain correctly

alpha tensioner repair 149 fmb

Our VKontakte group https://vk.com/club97862391 In this video I will tell you how the ignition timing differs from the timing phase (since many people confuse this) and show you how

Repair of a Chinese moped. There was a strong knocking sound in the engine.

Tools for replacing a chain on a moped

Open-end and box-end wrenches are used. In total, you will need four keys with a diameter of 10, 14, 17 and 24 millimeters. Depending on the moped model, instead of a diameter of 24, you may need 22 mm. If you have sockets and ratchets, you can replace some of the keys with them.

To tension the chain you will need wrenches 10, 14, 17 and 24

Just in case, it is better to stock up on a flat-head screwdriver; it will allow you to lift the bolts if they cannot be removed by hand.

How to adjust valves on an Alpha moped: instructions

Advantages of the Alpha moped engine

The Alpha moped has a motor - an exact copy of the engine produced by Honda for many years. The scheme, worked out over the years, works on the Honda Supe Cub, on the Monkey, Gorilla and Jazz models. They performed inhumane experiments on this engine, pouring sunflower oil instead of motor oil. There was a slight smell of roasted sunflower seeds, but the engine was running. This video is very popular among owners of any equipment that has such a motor. The Chinese motorcycle industry has spoiled almost nothing. If you monitor the condition of the moped in general and the motor in particular, the equipment will last quite a long time.

Internal structure of the Alpha moped engine

Proper Engine Maintenance

When purchasing a new Alpha moped, after a thousand kilometers of gentle mileage, you need to change the oil and adjust the valves. The engine parts have become accustomed to each other, the excess has been scraped off and now the unit can be returned to normal operating modes. Semi-synthetic oil is quite suitable, this engine does not rev high, and valve adjustment is a necessary maintenance item for any moped and even motorcycle.

What happens in the motor?

During engine operation, thermal expansion of all parts and valves occurs. If the valve clearance is greater than the nominal one, the shock loads on the entire gas distribution mechanism will increase and, ultimately, it will fail. When the gap is larger than required, such a roar is heard from the engine that it will be impossible to ignore it. If the gap is smaller, then the valves will simply tighten due to thermal expansion and stop opening. The moped will not start. It is worth watching a video once about the principles of operation of a four-stroke engine to understand how the moped works and how to adjust it. You can make a video yourself showing the process of setting up the engine of the Alpha moped.

Customization Tools

So, how to adjust the valves on an Alpha moped? What is needed for this? It is necessary to provide access to the adjustment mechanism. There are two small hexagonal caps in the engine head, on top, there are the intake valves, and on the bottom, towards the exhaust pipe, there are the exhaust valves. Adjusting the intake valves is easier, everything is visible. When removing the lids, do not lose the rubber ring that seals them. And in order to adjust the exhaust valves, if there is no lift, it will be more convenient to place the moped on its left side. You will need a special square wrench for the adjusting screw and an eleven wrench for the locknut. Feeler gauges for measuring gaps.

How is the adjustment done?

You can preview some video on this topic. The gap is measured between the top of the valve and the adjusting screw. We take the dipstick that says “0.05”. We loosen the nut, and, placing the feeler gauge under the bolt, use a special four-sided wrench to adjust the gap until the tip of the bolt easily touches the feeler gauge. If the dipstick comes out with little effort, the gap is smaller than necessary.

The first time it is quite difficult to feel the necessary effort. And each time, you will need to start the moped to understand how the adjustment went. But over time the skill will develop. Typically, the valve clearance at the intake is smaller than at the exhaust. This is due to the fact that the exhaust valves heat up more due to the temperature of the exhaust gases. But in this motor the clearances are the same and easy to remember.

Additional tool

In the standard set of tools for the Alpha moped there is no special key to adjust the gas distribution system of the moped. It is customary to contact specialists with this question. If you plan to thoroughly maintain your moped, you should get one. Also on the list of useful wrenches and accessories is an alternator puller and a castle wrench for unscrewing the clutch castle nut.

When handling any equipment, production culture is important. If you do not carry out all the work with a hammer and chisel, the moped will serve faithfully for many years.

Video on the topic

Photo report: Replacing the rear chain of an Alpha moped

Torque chain transmission is always a problem. But low cost, ease of maintenance, coupled with low weight, and for a motorcycle - weight is a very significant parameter - outweigh all the disadvantages and the chain drive of the rear wheel, just like many years ago, is dominant in the motorcycle industry. And we are unlikely to get away from this in the coming decades.

As already said: the chain is always a problem. The infection is spreading and nothing can be done about it. And if only it drags on, it begins to eat the teeth of the stars and if it is not replaced with a new one in time, then it will literally eat the stars in one season.

Without going into theory, let's consider a classic case: the chain has stretched and requires urgent replacement. If you look closely at the picture, you will see that the chain rollers do not fit into the sprocket teeth. As a result, the chain rollers hit the sprocket teeth and eat it up literally in one season.

Some especially gifted people manage to cut their own exclusive teeth on such sprockets using a grinder. But we won’t suffer from such garbage today, but we’ll buy a new driving star (the driven one is still alive, it’s good for a couple of seasons), a chain and do everything like a human being, and not like a collective farm.

When choosing a new chain, consider the width and number of teeth on your moped's sprockets. Chains for Alpha come in different widths and lengths: some are wide, some are narrow, some are long, some are short. We will use a wide 428 for Z13 Z41 sprockets, and which one you will use depends only on your sprockets and preferences.

We install the pin on the footrest, if you have one, of course.

We remove the casings, the drive sprocket cover, unscrew the rear wheel/rear sprocket axle nut, and loosen the tension chains on both sides.

We look for a lock on the chain, unfasten it and remove the old chain. For tusks, the chain is always riveted tightly and in this regard I was unlucky: I had to go for the grinder B-)…

We push the wheel along the rear pendulum as far forward as possible, throw on a new chain, and fasten the lock. To prevent the lock from unfastening while moving, we place the latch so that its cut faces in the opposite direction from the direction of its movement. To avoid getting confused, do this: turn the wheel so that the lock is on top of the pendulum and fasten the latch with the cut towards the rear wheel.

We lightly tighten the nuts of the sprocket/rear axle, remove the stub from the step, pump the rear suspension several times and slowly begin to tighten the chain according to approximately the following principle: tighten the chain a little and immediately measure with a ruler how the wheel is.

If the distance from the wheel to the pendulum on one side is significantly less or greater than on the other, we calibrate the position of the wheel with the required tensioner. In this way, in fits and starts, we pull the chain to the desired condition.

We pull the chain until it sag by 1-1.5 cm. This will be quite enough. After everything has been done, tighten the axle nuts and make sure to adjust the rear brakes. Never forget about the brakes, otherwise you’ll end up slamming into a trash can or a similar deer.

For those who are still with us, I will tell you the old-fashioned way of how to easily and simply determine how much the chain is loose: take the chain, straighten it and hang it in a horizontal position. The looser the chain, the stronger it will describe the arc; the newer the chain, the more even it will be.

For comparison, I took two chains: one was broken, the other was just from the store: the broken one hung snot at almost an angle of 90 degrees, the new one sagged a little and that’s all. This is the way.

Adjusting valves on an Alpha moped. Moped "Alpha"

Why do you need valve adjustment on an Alpha moped? The engine of the FMB 139 moped is equipped with a gas distribution mechanism with the camshaft located in the cylinder head. The valves are driven by rocker arms. During engine operation, the valves experience thermal expansion, so a small gap is provided between the rocker arm and the valve to compensate for thermal expansion. Insufficient or excessive clearance may cause serious engine damage.

The negative effect of incorrect clearances accumulates gradually and can cause valve burnout, seat destruction, decreased compression, overheating and deformation of important timing components. Adjusting the valves on the Alpha moped should be done several times a season. If the thermal clearances are set incorrectly, a characteristic knocking sound may appear when the engine is running, which is also a reason for adjusting the valves.

When and why to check the circuit

Manufacturers recommend checking every 1,000 kilometers. Under intense loads, if you have to travel hundreds of kilometers per day, inspection is required much more often. But by installing a high-quality chain, the motorcyclist will be able to reduce the number of checks.

Just by looking at the moped from the outside, it is not difficult for a specialist to determine if the chain is not tensioned correctly. Such an error when servicing a moped can lead to a break in the chain during a trip. Over-tightening occurs quite often and, despite the presence of lubrication, leads to accelerated wear of the chain. As a result, the suspension begins to work incorrectly. Over time, the hub may fail.

A poorly tensioned chain also often causes breakdowns. When moving, it will fluctuate greatly, and as a result, difficulties will arise with switching speeds. The shock load on the gearbox gears and rear hub will increase. The chain can lock the wheel axle by wrapping around it. Such a breakdown can lead to a serious accident.

The transmission of torque from the motor to the rear wheel in Alpha mopeds is carried out through a chain drive. This mechanism uses two stars connected by a chain. The first sprocket is connected to the gearbox, the second to the rear wheel.

The degree of tension changes as the pendulum moves along an arcuate path by the length of the suspension stroke. When stretching, it is important to remember that there should be a margin of 2-3 centimeters in length. Maximum tension is achieved when the following elements are lined up:

pendulum axis;
secondary shaft;
wheel axle.

How to set timing marks on an alpha moped

Checking the timing belt by marks on the Delta EX 50 moped

engine 1P39FMB (139FMB)

Comments from those interested:

Roman Khimchenko 2 weeks. reverse And if it doesn’t match WHAT to do

Vladimir Voronov 2 weeks. reverse Set it to match.

Vladimir Voronov 1 month ago This is nice. )) And of course there will be new videos, just wait a little.

Vladimir Voronov 1 month ago Yes! Another thing, don’t install two gaskets; it won’t make things any better; an increase in the combustion chamber will result in a drop in power.

Hunter38767 3 weeks reverse And if you have a 50cc head and a 72cc piston, then you need to change the head.

How to Change the Timing Chain on an Alpha Moped

Checking the time of Delta EX 50 mopeds
Roman Khimchenko turned 2 weeks ago

And if that doesn't answer what to do

Vladimir Voronov 2 weeks. flipped over

Valentin Sidorov 1 month ago

Thank you for the video. Everything is described in detail and clearly in Russian. If you continue to make videos like this, I will be all for it!

Vladimir Voronov 1 month ago

This is good. )) And of course there will be new videos, just wait a minute.

Danila Pugacheva 1 month ago

Vladimir Voronov 1 month ago

So! Further, do not install two gaskets, it will not be better, the combustion chamber will increase due to a drop in power.

Danila Pugacheva 1 month ago

Hunter38767 3 weeks ago

And if you have 50 cubes. 72 cubic head and piston head. See, you need to change your head.

LITTLE BIG. FARADENZA (official video)

Opened 3 days ago

How to set the timing phase and what is ignition timing

Checking the timing belt by marks on the Delta EX 50 moped

Roman Khimchenko 2 weeks. back

And if it doesn’t match WHAT to do

Vladimir Voronov 2 weeks. back

Set it to match.

Valentin Sidorov 1 month ago

Thank you for the video. Everything is described carefully and clearly, in Russian. If you continue to make videos like this, I will be all for it!

Vladimir Voronov 1 month ago

It's nice. )) And of course there will be new videos, just wait a little.

Danil Pugachev 1 month ago

Vladimir Voronov 1 month ago

Yes! Another thing, don’t install two gaskets; it won’t make things any better; an increase in the combustion chamber will result in a drop in power.

Danil Pugachev 1 month ago

Hunter38767 3 weeks back

And if you have a 50cc head and a 72cc piston, then you need to change the head.

Danil Pugachev 1 month ago

Hunter38767 3 weeks back

You can't have two gaskets, look, the valves may be overtightened, unscrew the two caps on the head, and look at the gap, it should be 0.05 on the feeler gauge. But if they hit the piston, then there is no gap.

Sergey Vasiliev 1 month ago

Vadim, thank you, I read a lot of useful information, thank you very much, I will be glad to see new videos on alpha, I’m really looking forward to it

Arkady Novoselov 1 month ago

well done thank you for you!

Danil Pugachev 1 month ago

Alpha 110 (Timing chain replacement)

Foam filter for Digital Temperature Indicator.

Photo report: Replacing the rear chain of an Alpha moped

Timing tags moped alpha

How to Change the Timing Chain on an Alpha Moped

LITTLE BIG. FARADENZA (official video)

Subscribe

Opened 3 days ago

How to set the timing phase and what is ignition timing

How to tension a chain on an Alpha moped - step-by-step instructions

How to correctly set timing marks on an alpha moped. The only video that tells everything. —

Tools for replacing a chain on a moped

How to adjust valves on an Alpha moped: instructions

Advantages of the Alpha moped engine

Proper Engine Maintenance

What happens in the motor?

Customization Tools

How is the adjustment done?

Additional tool

Video on the topic

Photo report: Replacing the rear chain of an Alpha moped

Adjusting valves on an Alpha moped. Moped "Alpha"

When and why to check the circuit

How to set timing marks on an alpha moped

How to Change the Timing Chain on an Alpha Moped

LITTLE BIG. FARADENZA (official video)

Subscribe

Opened 3 days ago

How to set the timing phase and what is ignition timing

Alpha 110 (Timing chain replacement)