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.
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
Arkady Novoselov 1 month back, well done, thank you for you!
Method number 2 - hammer
This method is suitable for those who need to repair a motorcycle without special tools. A sledgehammer or anvil is placed on the bottom, under the chain. Take a hammer about 400 grams, and with careful movements, drive the locking pin between the links. Next, the task is to rivet the pin evenly until it becomes a mushroom. This procedure will take no more than 10-20 minutes. This method will require skill and attention to both ends of the fixing pin.
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Photo report: Installing a tuning piston on a Chinese 4T scooter
Installing a piston with a larger volume than stock is perhaps the simplest, most affordable, affordable and effective way to significantly increase the maximum speed and power of a scooter. There are, of course, even more effective ways to increase maximum speed and power, but these methods, or rather the hardware, cost simply unrealistic money...
If you charge the engine of the same 139QMB to the maximum, then such tuning before the “increase” cost the client about 35,000 rubles and this does not include work.
It is clear that not everyone can afford such amounts. Yes, even if it’s affordable, what’s the point? It’s easier to buy an old branded scooter and ride it than to charge the “Chinese” and then throw it in the trash after a season. But that's what I think.
Source
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
Starring: Ilya Prusikin Sonya Taurskaya Polina Sokolova Zhenya Meck Nikita Gorin Tatyana Andriyanova Irina Grigorieva Marina Tsurkova Yulia Shelobugina Khachatryan Arthur Svetlana Deykun Camila Larisse Elena Lisenkova Nadezhda German Svetlana Ivanova Zoya Timofeeva Nikolay Goncharov Leonid Paranin Mikhail Simonov Valery Sizov Denis Makotra Anatoly Toporov Yuri Ivanov Technical equipment. Lenfilm
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.
Installing piston rings
Remove the set of piston rings from the box. A piston ring set for a Chinese four-stroke scooter usually consists of five items. Three of which are a single assembled oil scraper ring, the other two: upper and lower compression.
A typical set of piston rings looks something like this
Carefully unpack the kit with perfectly clean hands.
In the kit you will find two of the thinnest rings and one thick corrugated ring (expander) - this will be an assembled oil scraper ring that needs to be installed on the piston first.
We place an expander in the lowest groove of the piston
We place thin oil scraper rings in the same groove - one under the expander, the second on top of the expander
We find the lower and upper compression rings in the kit and install them, respectively, in the middle and upper grooves of the piston - with marks on the side surface to the cylinder head (cylinder head). The lower compression ring differs from the upper one in color (not always) and the shape of the working edge (always). In most kits, the lower compression ring is painted black, and its working edge has a slight bevel.
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.
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 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
Other videos on the topic:
Didn't find the answers in the article? More information on the topic:
Preparatory work
It is imperative to clean the chain, otherwise tensioning will not work. There is grease on metal surfaces, and dust accumulates on top over time. These contaminants cannot be washed off in ordinary water; you need to use auto chemicals. It is better to choose a product in the form of an aerosol that will not corrode the seals - chain O-rings
If the mechanism is heavily dirty, it is advisable to remove the cover from the drive sprocket. It is important to ensure that the retaining nut is well tightened. The cleaning itself is carried out as follows:
Cleaning the moped chain Now you need to determine the degree of wear of the elements. The chain links should not jam, ideally they move easily. It is also necessary to check the presence and condition of the seals. The sprocket teeth must not be bent, pointed or damaged. Wear on the tooth surfaces may be associated with improper installation of the rear wheel.
To determine the condition of the chain, you need to check whether there are areas where the tension is too high or, conversely, weak. To do this, you need to manually turn the wheel. If such areas are present, it means that the bushings and pins have worn unevenly. In this case, the distance between the pins increases and the chain becomes longer.
Severely worn chain
Often the cause of the appearance of sections with different tensions are problems with other components of the moped. The sprockets may be installed with an incorrectly centered hole or the wrong diameter. Uneven tension may be due to severe wear on the wheel hub or failure of the sprocket hub bearings. But other damage may also be discovered, so it is important to carry out a thorough inspection.
It is easy to determine the degree of wear by the length of the chain. To do this you need to pull it back. It is important to try to pull the chain off the sprocket at the same time. Replacement is required when, when attempting to remove, most of the sprocket tooth becomes visible. If the chain rollers are bent and squeak when driving, it is better to change the part along with the sprockets.
After cleaning, you need to align the rear wheel. This is an easy task if the axis is marked. But the marks sometimes get confused, so additional checking is necessary. As the rear wheel rotates, you need to shine a flashlight and pay attention to the chain. If it does not move straight, it means the installation was not done correctly.
After installing the rear wheel, you need to remember where the marks are located. If they are not symmetrical, this indicates that the marks were applied incorrectly. In this case, you can draw new marks on the reverse side of the chain with a marker. When tightening the rear axle, it is important to push the wrench toward the front wheel.
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.
Method No. 1 - a special device
Pressing the chain is done using a small clamp, at one end of which a small metal ball is fixed. When the thread is tightened, the lock flares. Before this, the locking pin must slide smoothly and neatly into the chain links. It is the threaded mechanism that allows you to regulate the force and efficiently press and press the lock.
Sometimes, such sets may have pins and balls of several diameters to serve several models of chains. It is important to evaluate whether the pin and ball are selected correctly for the job, otherwise the pin will rest against the side wall of the link and, with force, may bend it.
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.
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.
How to adjust and tension the chain?
There’s no way you can tighten it or adjust it, and you don’t bother Google or Yandex search with such queries. The chain in the scooter engine is tensioned automatically. And if it has already stretched to such an extent that it begins to fly off or jump over the teeth, feel free to disassemble the engine and replace it with a new one. There are no miracles.
And I will prove this to you now. The chain in the engine is tensioned using a special tensioner, which operates in a fully automatic mode. As the chain stretches, the tensioner rod, under the action of an internal spring, comes out of the housing and tightens the chain. And the more the chain stretches, the more the rod will come out. But! The rod has a limited stroke: on a completely new chain it comes out about a third of its stroke and then, as it stretches, it comes out completely and then it won’t come out anymore. Therefore, the chain will no longer be tensioned! And all your attempts to correct the situation will lead to nothing.
LITTLE BIG. FARADENZA (official video)
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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
Starring: Ilya Prusikin Sonya Taurskaya Polina Sokolova Zhenya Meck Nikita Gorin Tatyana Andriyanova Irina Grigorieva Marina Tsurkova Yulia Shelobugina Khachatryan Arthur Svetlana Deykun Camila Larisse Elena Lisenkova Nadezhda German Svetlana Ivanova Zoya Timofeeva Nikolay Goncharov Leonid Paranin Mikhail Simonov Valery Sizov Denis Makotra Anatoly Toporov Yuri Ivanov Technical equipment. Lenfilm
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.
Preparation
So that you don’t have green snot later about the fact that the tuning piston does not fit into the crankcase and you were allegedly deceived here - remove the old piston from the engine and measure the hole for the liner with a caliper. If the hole is smaller than the tuning piston sleeve, the “meat” of the crankcase allows it, hands grow from where it is needed - a round file will help you (only before boring - disassemble the engine, assemble the empty crankcase with bolts, bore the hole, make sure that the piston enters the crankcase without problems - wash the parts from shavings and reassemble the engine. Or, as a last resort, coat the crankcase and file with grease to at least somehow protect yourself from sawdust getting into the inside of the engine.)
The hole for the 162QMK engine sleeve (such engines are installed on Chinese scabs, more popularly known as “Leika”) in stock is 65 mm. Without boring, a piston of 57mm (150CC), 61mm (1700CC) and 62mm (180CC) easily fits into this crankcase. You won’t find a 62mm piston on sale during the day, so it was decided to install a regular 61mm piston on this engine.
By the way, for those who do not know, a piston with a diameter of 61 mm can be easily installed not only on the Leica engine, but also on any other Chinese 150 equipped with a 157QMJ series engine. There, if you put your hands to it, you can stick a piston at 62mm, but only if the “meat” of the crankcase allows it. Everything is individual, you need to look at the place. In any case, the distance along the studs is the same for both the 61mm piston and the 62mm piston.
On the 139QMB series engine from a regular Chinese 80-six, you can easily install a piston 39mm (45CC), 47mm (72CC), 50mm (84CC)
From left to right: 39mm (45CC), 47mm (72CC), 50mm (84CC)
