Kickstarter on a moped is a seemingly simple mechanism, but dismantling it often turns into a headache for owners. Either the nut got stuck, then the spring shot into the eye, then after assembly the leg falls into the void. This article will help you avoid common mistakes and remove kickstarter no damage - be it scheduled repairs, spring replacement or complete disassembly for cleaning.

We will analyze the process using popular models as an example (Alpha 110, Honda Tact, Yamaha DT 50), but the principles are valid for 90% of mopeds and scooters. We will pay special attention three critical points: fixing the flywheel, removing the retaining ring and correct spring position during reassembly - This is where most people make fatal mistakes.

1. Preparation: tools and safety precautions

Before you grab your wrenches, make sure you have everything you need. The absence of at least one tool can result in the edges of the bolts breaking off or the threads being damaged.

  • 🔧 Spanners by 10, 12, 14 mm (depending on the moped model)
  • 🔨 Impact screwdriver or a hammer with a wooden spacer to knock out the axle
  • 🧲 Magnetic holder (so as not to lose small parts such as bearings)
  • 🔗 Circlip remover (required! Pliers will not work here)
  • 📸 Smartphone for photographing the process (useful during assembly)

Work in a well-lit place - half of the problems are caused by poor visibility. If the moped was standing on the street, Wipe the kickstarter and surrounding parts with a rag: Dirt and sand entering the mechanism will accelerate wear on the bushing and gear.

⚠️ Attention: Never remove the kickstarter on a moped from hot engine! The metal expands and the gaps between parts decrease - the risk of damaging the thread or breaking the bolt increases threefold.
📊 What experience do you have in repairing mopeds?
  • This is my first time making a kickstarter.
  • Already repaired, but there were problems
  • Professional - I do this regularly
  • I prefer to give it to the service

2. Removing the plastic casing and accessing the mechanism

On most mopeds (Alpha, Lexmoto, Zongshen) the kickstarter is hidden under the right plastic cover. To remove it:

  1. Unscrew 2-3 screws securing the cover (usually a Phillips screwdriver).
  2. Using a plastic spatula, carefully pry the lid off, starting at the bottom edge.
  3. Disconnect the rear brake light connector (if it is in the way).

On some models (for example, Honda Dio AF-18) will have to be removed additionally variable speed casing. To do this:

1. Снимите ремень вариатора.

2. Открутите 4 болта крепления кожуха (ключ на 10 мм).


3. Сдвиньте кожух в сторону, не отсоединяя полностью — он может мешать при обратной сборке.

After removing the plastic, you will see the kickstarter mechanism itself: an axle with a pedal, a spring and a gear engaged in starter drum. At this stage take pictures of the location of all the parts - this will save you from assembly errors.

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If the housing bolts do not budge, spray them with a penetrating lubricant (for example, WD-40) and wait 10-15 minutes. Don't use too much force—broken edges will cost more than a can of lubricant.

3. Removing the kickstarter axle: step-by-step instructions

The most critical moment is to remove the kickstarter axle without damaging the threads in the crankcase. The main thing here is to fix the flywheel correctly, otherwise you risk turning the crankshaft and breaking the key.

Place the moped on the central stand|Fix the flywheel through the inspection window with a screwdriver|Mark with a marker the position of the pedal relative to the axis|Place a rag under the crankcase (in case the spring falls out)-->

Algorithm of actions:

  1. Insert a screwdriver into flywheel inspection window (usually covered with a rubber plug) and press it against the teeth to block rotation.
  2. Using a 14 mm wrench, unscrew the axle mounting nut (on Yamaha DT You may need a 17mm wrench).
  3. Remove the lock washer and knock out the axle light blows through a wooden spacer. You can't hit metal with metal!
  4. Remove the axle along with the pedal and spring. Be prepared: the spring may shoot!

On some mopeds (for example, Alpha 110) the axle sits very tightly. If it doesn't work, try:

  • 🔥 Heat the crankcase around the axis with a construction hairdryer (the metal will expand).
  • 🛠️ Use a puller with claws (if you have access).
  • 💧 Pour kerosene into the gap between the axle and the crankcase and wait an hour.
⚠️ Attention: If, when knocking the axle out of the crankcase, there is a metallic grinding sound, stop immediately! Most likely you have bent the guide bushing. Further efforts will damage the crankcase.

4. Disassembling the mechanism: spring, gear and bearings

After removing the axle, you will be presented with a set of parts: a spring, a return mechanism, a gear and, possibly, a bearing. The main thing here is do not mix up the assembly order and not lose small elements.

Detail Typical problems How to check
Return spring Stretched, broken or slipped out of place Compare with new: free length should be the same
Kickstarter gear Chips of teeth, wear of the working surface Turn by hand: there should be no play or jamming
Axle bearing Broken seat, play Rock the axle: play more than 0.5 mm is a sign of wear
Retaining ring Deformed or lost elasticity Try to put it on the axle: it should sit with effort

Pay special attention spring. On models Honda Tact And Yamaha Jog it often breaks at the base. If the spring is stretched, the kickstarter will turn without engaging - this is a common cause of the pedal "idling".

To replace the spring:

  1. Fix it in a vice using soft jaws.
  2. Remove the retaining ring using a puller.
  3. Carefully unclench the coils and remove the spring from the axle.
What to do if the spring is shot?

If the spring has jumped off and shattered, do not try to “straighten” it - it is already deformed. Buy a new one (item number for Alpha 110 - 15211-KEN-D01). When installing a new spring, hook its end into the groove in the axle to before you put the locking ring on.

5. Common mistakes and how to avoid them

Even experienced mechanics sometimes make mistakes when working with a kickstarter. Here are the most common:

  • 🔄 Assembly order mixed up - for example, first they put on the spring, and then install the gear. Result: the kickstarter does not return to its original position.
  • 🔧 Axle nut overtightened — leads to tight pedal travel and accelerated wear of the bushing.
  • 🛑 Flywheel not secured when tightening the nut, it breaks the crankshaft key.
  • 🔍 Lost retaining ring — without it, the axle will dangle, and the kickstarter will quickly break the seat.

Another common problem is incorrect pedal installation. On many mopeds it has an asymmetrical mount. If you turn the pedal over, it will cling to the frame or variator. Before installation, check:

  • On Alpha And Lexmoto there is a mark on the pedal in the form of an arrow - it should look forward.
  • On Honda Dio the pedal has a protrusion with a limiter - it should be at the bottom.
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After assembly, the kickstarter should return to its original position with a characteristic click. If the pedal returns sluggishly or remains in the down position, you have installed the spring or retaining ring incorrectly.

6. Assembly and performance testing

Assembly proceeds in reverse order, but there are several critical points:

  1. Before installing the axle, apply to the threads thread locker (For example, Loctite 243). This will prevent the nut from unscrewing spontaneously.
  2. Make sure kickstarter gear is properly engaged on the drum. On Yamaha DT 50 To do this, you need to turn the crankshaft until the teeth match.
  3. Tighten the axle nut with a force of 20-25 Nm (do not overtighten!).
  4. After assembly, check the pedal travel: it should return smoothly without delay.

First start after repair:

  1. Make sure the gear is out of gear (moped in neutral).
  2. Smoothly press the kickstarter all the way - you should hear a clear click of engagement.
  3. If the pedal falls or creaks, disassemble the mechanism and check the installation of the spring.

On models with automatic transmission (Honda PCX, Yamaha NMAX) may be required after assembly reset variator adaptations. To do this:

1. Заведите мопед.

2. Прогрейте двигатель до рабочей температуры.


3. 3 раза плавно разгонитесь до 60 км/ч и затормозите.

7. When to contact service: signs of serious problems

Not all kickstarter problems can be fixed on your own. Here are the cases when it is better to trust the professionals:

  • 🔊 Metal scraping when you press the pedal - a sign of destruction of the bearing or gear.
  • 🔄 The pedal turns without resistance — the starter drum ratchet may have broken.
  • 💥 Bang or crunch when the pedal is returned, there is a crack in the axle or a broken gear tooth.
  • 🔥 Crankcase overheating in the kickstarter area - indicates a jammed mechanism.

If you find metal shavings in oil or on a magnetic plug - this is a signal of critical wear of parts. In this case, complete disassembly of the engine and replacement of damaged elements will be required.

Cost of repairing a kickstarter in the service:

Type of work Cost (RUB) Lead time
Spring replacement 800–1 200 30–40 minutes
Replacing an axle with bearing 1 500–2 500 1–1.5 hours
Starter drum repair 2 000–4 000 2–3 hours
Full diagnostics 500–1 000 20–30 minutes
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If, after self-repair, the kickstarter works poorly or jerkily, do not ignore the problem! This can lead to damage to the starter drum, and replacing it will cost 3–5 times more than timely diagnosis.

Frequently Asked Questions

Is it possible to drive without a kickstarter if it is broken?

Technically yes, but it's inconvenient. On mopeds with electric starter (Honda PCX, Yamaha NMAX) there will be no problems. On models without electric starter (Alpha 110, Lexmoto LXR 50) you will have to start “push” or tow, which is harmful for the clutch and variator.

In addition, the absence of a kickstarter may cause a refusal to pass a technical inspection - the inspector has the right to consider this a malfunction.

How often should the kickstarter mechanism be lubricated?

Manufacturers recommend lubricating the kickstarter axle and gear every 10,000 km or once a season. Use high temperature grease (For example, Liqui Moly LM 50 or Castrol Optimol).

Do not use Litol or Solid oil - they thicken in the cold and attract dirt.

Why does the kickstarter pedal not return after assembly?

There are three reasons:

  1. Spring installed incorrectly - twisted or not engaged in the groove.
  2. Gear jammed — check to see if any debris has gotten between the teeth.
  3. Axle nut overtightened - loosen it 1/4 turn.

Disassemble the mechanism and check each point. Most often the problem is in the spring.

Which kickstarter spring should I buy as a replacement?

The choice depends on the moped model. Here are the article numbers for popular models:

  • Alpha 110 / Lexmoto LXR 50: 15211-KEN-D01
  • Honda Dio AF-18/27: 28335-HM8-003
  • Yamaha DT 50: 1JW-28335-00-00
  • Suzuki Address 110: 28335-01G00

Springs from different manufacturers may differ in stiffness. For sporty driving, take springs with markings "Heavy Duty" - they last longer, but require more force when pressed.

Can a broken kickstarter axle be repaired?

If the axle is bent or has cracks, replace only.

If the thread is damaged, you can try cutting a new one (one size larger) and use a repair nut. But this is a temporary solution - it’s better to buy a new axle (cost: 500–1,500 rubles, depending on the model).