Motorcycles IZH 49 (also known as IZh Planet Sport) remain a legend of the Soviet and post-Soviet motorcycle industry. Their reliability and simplicity of design attract both collectors and practical owners. However, even such time-tested machines have weak points - one of them is the kickstarter, a manual engine starting mechanism. Improper use or wear of parts can turn a normal motorcycle start into real torture.
In this article we will analyze the kickstarter device IZH 49, typical breakdowns (from ratchet wear to problems with the return spring), and we will also give step-by-step instructions for repair and prevention. We will pay special attention to **safe starting techniques** - how to avoid a kickback and not break a leg or the mechanism itself. If your motorcycle stubbornly refuses to start the first time, and the kickstarter idles or jams, here you will find solutions.
IZH 49 kickstarter device: diagrams and key elements
Kickstarter IZH 49 - This is a mechanical unit that converts the driver’s muscular effort into crankshaft rotation. Unlike an electric starter, it does not rely on a battery, but does require proper operating technique. Main components of the system:
- 🔧 Kickstarter lever - an external pedal that the driver presses. Connects to the shaft through a spline connection.
- ⚙️ Kickstarter shaft - transmits force to the ratchet. Rotates in bearings installed in the engine crankcase.
- 🔄 Ratchet — mechanism of one-way force transmission. When the lever moves back, it separates the shaft and crankshaft, preventing a blow to the leg.
- 🌀 Return spring — returns the lever to its original position after pressing.
- 🛠️ Ratchet pawl - a small part that engages with the flywheel crown.
When you press the lever, the pawl clings to the teeth of the flywheel crown, turning the crankshaft. After passing the top dead center (TDC), the spring returns the lever upward, and the ratchet disconnects the connection with the engine. The IZH 49 uses a ratchet with 24 teeth, which ensures reliable grip even with worn parts - but only if the mechanism is correctly adjusted.
The operation scheme is simple, but there are nuances: for example, if the ratchet pawl is broken or worn out, the kickstarter will turn idle without clinging to the flywheel. And if the return spring is weakened, the lever will not return to its original position, which may break the next time it is pressed.
- Every time you start
- Only if the battery is low
- Close, but prefer electric starter
- I hardly use it
Typical malfunctions of the IZH 49 kickstarter and their symptoms
Even with careful use, kickstarter IZH 49 wears out over time. A malfunction can be recognized by its characteristic symptoms. Here are the most common problems:
| Malfunction | Signs | Possible reasons |
|---|---|---|
| The lever turns idle | There is no resistance when pressed, the engine does not turn over | Worn pawl or ratchet teeth, broken pawl spring |
| Lever jamming | The lever does not return to its original position | Breakage or weakening of the return spring, contamination of the mechanism |
| Hit to the leg while reversing | The lever “gives” after pressing | Worn ratchet, broken pawl, incorrect adjustment |
| Pressing the lever tightly | Requires a lot of force to scroll | Shaft contamination or corrosion, bearing wear, lever deformation |
Particularly dangerous is the **reverse strike** - when, after pressing, the lever suddenly returns back, which can lead to injury. This happens if the ratchet does not disengage from the flywheel at the right time. Most often the culprits are:
- 🔩 Broken or deformed ratchet pawl.
- 🛑 Wear of the teeth on the flywheel crown (they become “rounded”).
- 🔧 Loosening the fastening of the ratchet to the shaft.
⚠️ Attention: If the kickstarter begins to “give” when returning, stop using it immediately! Continued operation may result in crankshaft failure or injury.
Do-it-yourself step-by-step repair of the IZH 49 kickstarter
Most kickstarter malfunctions IZH 49 you can fix it yourself with a minimal set of tools: keys 10, 12, 17, screwdrivers, pliers and ratchet puller. Below are step-by-step instructions for the most common cases.
1. Replacing the ratchet pawl
If the lever turns idle, the pawl is most likely worn out or broken. To replace it:
Remove the right engine crankcase cover
Unscrew the ratchet mounting bolt (17 wrench)
Remove the ratchet with a puller or carefully knock it with a hammer through a wooden spacer
Remove the old pawl and install the new one (pay attention to the direction of the teeth!)
Reassemble the mechanism in reverse order-->
When installing a new pawl, make sure that it moves freely in the grooves of the ratchet and is securely fixed by the spring. If the spring is weakened, it is also better to replace it.
2. Repair of return spring
If the lever does not return to its original position, the problem is with the return spring. To replace it:
- Remove the kickstarter lever (unscrew the nut on
10at the base). - Remove the cotter pin securing the shaft.
- Remove the retaining ring and pull out the shaft along with the spring.
- Replace the spring with a new one (original part number -
3701-1701060). - Assemble the mechanism by lubricating the shaft and spring lithol.
⚠️ Attention: When assembling, make sure that the spring is correctly oriented - its ends should cling to special grooves on the shaft and housing. Incorrect installation will lead to repeated failure.
3. Elimination of tight lever movement
If the kickstarter is hard to press, check:
- 🔧 Condition of the shaft bearings (if worn, replace with new ones, article number
3701-1701020). - 🛢️ Availability of lubricant in the mechanism (use Litol-24 or CIATIM-201).
- 🔩 Lever attachment - if the bolt is loose, the lever may cling to the crankcase.
Before assembly, clean all kickstarter parts from old grease and dirt with kerosene. This will extend the life of the mechanism and prevent corrosion.
How to properly start an IZH 49 from a kickstarter: safety precautions
Even a working kickstarter can become a source of problems if used incorrectly. Here are the key rules for launching safely:
- Check neutral. Make sure the gearbox is in neutral (the dashboard lights are off). You can start the motorcycle in gear only in emergency cases (for example, if neutral does not engage).
- Do not press the lever all the way. A sudden movement is enough
2/3stroke - this way you will reduce the load on the ratchet and avoid kickback. - Use the correct posture. The foot should be on the lever heel down, and not with a sock - this will protect the ankle from injury during a reverse impact.
- Do not “pump” gasoline before starting. On IZH 49 with carburetor K-62 1-2 short presses on the enrichment button are enough (if the engine is cold).
If the engine does not start after 3-4 attempts, do not continue to pull the kickstarter endlessly. This will lead to:
- 🔥 Re-enrichment of the fuel mixture (will flood the spark plug).
- 🔧 Accelerated wear of the ratchet.
- 💥 Risk of kickback (if the dog is already worn out).
Check instead:
- 🔋 Presence of a spark on the candle (unscrew it and check by applying it to the mass).
- ⛽ Quality of the fuel mixture (perhaps the gasoline is old or water has entered).
- 🔊 Decompressor operation (on IZH 49 it should click when pressed).
If the motorcycle does not start after 5 attempts, pause for 2-3 minutes. This will allow the battery (if any) to recover and the fuel to evaporate from the spark plug electrodes.
Modernization of the IZH 49 kickstarter: what can be improved
Standard kickstarter IZH 49 reliable, but not without flaws. Owners often upgrade it to increase resource or convenience. Here are the popular modifications:
| Modernization | Benefits | Difficulty |
|---|---|---|
| Installation of a reinforced ratchet pawl (from IZH Planet 5) | More reliable grip, less risk of kickback | Medium (requires ratchet replacement) |
| Replacing a standard spring with a spring from Ural | More rigid lever return, less risk of jamming | Lightweight (suitable without modifications) |
| Installing a closed type bearing instead of a standard one | Less dirt ingress, increased service life | Medium (needs a press for pressing) |
| Modification of the lever (lengthening or bending) | Reducing pressing force | Easy (you can do it yourself) |
One of the most effective modifications is replacing the standard ratchet with a **reinforced one from IZH Planet 5**. It has a stronger pawl and an increased resource. To install you will need:
- Remove the right crankcase cover.
- Remove the old ratchet (you may need a puller).
- Install a new ratchet (part number
3705-1701010) and adjust the pawl clearance.
Another useful upgrade is the **protective cover for the kickstarter lever**. It prevents dirt and moisture from entering the mechanism, which is especially important for off-road driving. You can make the casing yourself from sheet aluminum or buy a ready-made one (for example, from Dnepr-Moto).
What happens if you ignore kickstarter wear and tear?
If the kickstarter is not repaired in time, the consequences can be serious:
- Breakage of flywheel teeth (requires engine disassembly).
- Crankshaft deformation due to kickback.
- Destruction of the crankcase housing (when the mechanism jams).
In the worst case, the motorcycle may completely fail, and repairs will cost an amount comparable to the cost of the bike itself.
Common repair mistakes and how to avoid them
Even experienced motorcyclists sometimes make mistakes when repairing a kickstarter. IZH 49, which leads to repeated breakdowns. Here are the most common mistakes:
- 🔧 Using unsuitable lubricant. Do not lubricate the kickstarter solid oil or graphite lubricant - they thicken in the cold and attract dirt. Best option: Litol-24 or molybdenum grease.
- 🛠️ Incorrect installation of the ratchet pawl. If you turn it over, it will not cling to the flywheel. The correct position is teeth forward in the direction of rotation.
- 🔩 Tightening the ratchet bolt. This leads to shaft deformation or housing cracks. Tightening torque -
25–30 Nm. - 🔄 Ignoring shaft play. If the kickstarter shaft is loose, it must be replaced along with the bearings. Otherwise, the new ratchet will quickly fail.
Another common mistake is **trying to “repair” worn ratchet or flywheel teeth with a file**. This is a temporary solution that will lead to even faster wear. If the teeth are worn out or chipped, the part must only be replaced.
⚠️ Attention: When assembling the kickstarter, never use a hammer to press in the bearings or the ratchet! Impacts may deform the shaft or housing. Use only a puller or press.
Where to buy spare parts for the IZH 49 kickstarter: original vs analogues
There are both original spare parts for kickstarter on the market IZH 49, as well as analogues from other models or manufacturers. Here's what you need to know when choosing:
| Detail | Original article | Analogs (suitable spare parts) | Notes |
|---|---|---|---|
| Ratchet assembly | 3701-1701010 |
From IZH Planet 5 (3705-1701010), Minsk (with modification) |
Ratchet from Planets 5 stronger, but may require adjustment |
| Ratchet pawl | 3701-1701030 |
From Ural or Dnieper (needs sharpening) | The Ural dog is thicker, but requires finishing with a file |
| Return spring | 3701-1701060 |
From IZ Jupiter 5 (3706-1701060), moped springs Riga |
Spring from Jupiter 5 stiffer, which improves lever return |
| Shaft bearing | 3701-1701020 |
Bearing 60202 (20×35×11 mm) or 6202 (15×35×11 mm) with adapter | Use sealed bearings to keep dirt out |
Where to look for spare parts:
- 🛒 Specialized stores: MotoDetail, IZH-Shop, RetroMoto (original and refurbished parts available).
- 🌍 Internet platforms: Avito, Yula, Drome (used parts at low prices, but check the condition!).
- 🏭 Foreign suppliers: AliExpress, eBay (Chinese analogues, quality varies).
When purchasing used parts, pay attention to:
- 🔍 Condition of ratchet teeth (should not be chipped or heavily worn).
- 🌀 Smooth running of bearings (play or noise is a sign of wear).
- 🔧 Integrity of threaded connections (thread failures are a common problem).
If you buy Chinese analogues, be prepared for modifications. For example, ratchets with AliExpress often require adjustment of the seat or replacement of the pawl spring.
FAQ: Answers to frequently asked questions about the IZH 49 kickstarter
Is it possible to start the IZH 49 from a kickstarter in gear?
Technically possible, but highly not recommended. Winding in gear creates additional stress on the ratchet and gearbox. If neutral does not engage, it is better to push the motorcycle and jump start it in 2nd or 3rd gear than to risk breaking the kickstarter.
Why does the kickstarter kick into the leg during reverse?
This is a sign of a faulty ratchet. Most often, the pawl breaks or wears out, or its spring has weakened. The cause may also be wear on the teeth on the flywheel. Urgently disassemble the mechanism and replace damaged parts - further operation is dangerous!
What is the best lubricant to lubricate a kickstarter?
Optimal options:
- Litol-24 — universal, does not thicken in the cold.
- CIATIM-201 - withstands high loads.
- Molybdenum grease — increases the service life of rubbing parts.
Do not use grease or graphite lubricant - they attract dirt and do not work well at low temperatures.
Is it possible to install an electric starter on the IZH 49 instead of a kickstarter?
Technically possible, but will require serious modifications:
- Installation of a high-power generator (for example, from IZH Planet 5).
- Installation of the starter (suitable from Minsk or sunrise with modification of fastening).
- Replacing the battery with a more capacious one (minimum 12 Ah).
Such modernization will cost 15–20 thousand rubles and will require welding work. For everyday use, it is easier to keep the kickstarter in working order.
How much does it cost to repair a kickstarter at a service center?
The cost depends on the amount of work:
- Replacing the ratchet pawl — 1,500–2,500 rub. (with spare parts).
- Repair of shaft with bearings — 3,000–4,500 rub.
- Complete Kickstarter overhaul — 5,000–7,000 rub.
In most cases, it is cheaper and more reliable to do the repairs yourself.