1. Úvod
This manual provides essential information for the installation, operation, and maintenance of the X-PRO 110cc 4-stroke engine with semi-automatic transmission and electric start. This engine is designed for compatibility with various Chinese-made ATVs and Go Karts, including 50cc, 70cc, 90cc, and 110cc models, provided the mounting holes are compatible. Please read this manual thoroughly before installation and operation to ensure proper function and safety.

Obrázek 1: Přední strana view of the X-PRO 110cc ATV Engine Motor, showing the cylinder head and transmission casing.
2. Specifikace produktu
The following table details the technical specifications of the X-PRO 110cc engine:
| Funkce | Specifikace |
|---|---|
| Model motoru | 308-999020 |
| Typ motoru | Single Cylinder, 4-Stroke, 2-Valve |
| Přemístění | 107ml (0.02 Gallon) |
| Chladicí systém | Chlazení vzduchem |
| Metoda zapalování | CDI |
| Startér | Elektrický startér |
| Přenos | Semi Automatic (3 forward, 1 reverse) |
| Spojka | Automatic Multi-plate Wet Clutch |
| Max. Koňská síla | 6.71HP / 8000 RPM (5.0KW / 8000 RPM) |
| Max. Točivý moment | 6.9N.m / 6500 RPM |
| Min. Stable Idle Speed | 1350-1650 ot./min |
| Min. Fuel Consumption | 9.65oz/HP.h (367g/Kw.h) |
| Carburetor Model | PZ19 (Plunger type) |
| Model zapalovací svíčky | A7TC |
| Požadavek na palivo | >= 87# Octane |
| Lubrication Model | SF15W/40-SE |
| Lubrication Capacity | 900ml (0.20 Gallon) |
| Bore & Stroke | 52.4 mm × 49.5 mm (2.06" × 1.95") |
| Kompresní poměr | 9.0:1 |
| Hmotnost položky | 65 libry |
| Materiál | Hliník |
3. Instalace a nastavení
Proper installation is crucial for the engine's performance and longevity. It is recommended that installation be performed by a qualified technician if you are unfamiliar with engine replacement procedures.
3.1 Kontrola kompatibility
Before installation, verify that the mounting holes and electrical connections of this engine are compatible with your ATV or Go Kart. This engine is designed for models where the starter is not bottom-mounted. Measure the physical dimensions to confirm fitment.
3.2 Montáž motoru
- Securely mount the engine to the vehicle frame using appropriate hardware. Ensure all mounting bolts are tightened to the manufacturer's specifications.
- Connect the exhaust system to the engine. Ensure a tight seal to prevent leaks.

Figure 2: The X-PRO 110cc engine shown with various components, including intake manifold and mounting hardware.
3.3 Elektrické připojení
- Connect the CDI unit, starter motor, and other electrical components. Pay close attention to wiring diagrams specific to your vehicle and the engine.
- Ensure all connections are secure and free from corrosion. If the provided plug-in is not compatible, an additional adapter may be required.
3.4 Fuel and Lubrication
- Connect the fuel line from the tank to the carburetor. Ensure there are no kinks or leaks.
- Fill the engine with 900ml (0.20 Gallon) of recommended SF15W/40-SE lubrication oil. Do not overfill.
- Fill the fuel tank with gasoline of 87# octane or higher.
4. Návod k obsluze
Follow these steps for safe and effective operation of your X-PRO 110cc engine.
4.1 Startování motoru
- Ensure the vehicle is in neutral (N) or park (P) if applicable.
- Otočte klíček zapalování do polohy „ON“.
- If the engine is cold, engage the choke.
- Press the electric start button. Release the button once the engine starts.
- Allow the engine to warm up for a few minutes before riding. Disengage the choke as the engine warms.
4.2 Semi-Automatic Transmission
This engine features a semi-automatic transmission with 3 forward gears and 1 reverse gear. The clutch operates automatically, eliminating the need for a manual clutch lever.

Figure 3: Shift indicator diagram showing Neutral (0), Reverse (R), and Forward Gears (1, 2, 3).
- To shift gears, use the foot shifter.
- Shift down for lower gears (1st) and up for higher gears (2nd, 3rd).
- To engage reverse, typically shift down past 1st gear or follow the specific shifting pattern indicated on your vehicle. Refer to the shift indicator diagram (Figure 3).
- Always ensure the vehicle is stationary or moving slowly when shifting, especially into reverse.
5. Údržba
Regular maintenance is essential for the optimal performance and longevity of your engine. Adhere to the recommended service intervals.
5.1 Výměna oleje
- Check the oil level regularly and change the engine oil according to your vehicle's service schedule, typically after the first 20 hours of operation, then every 50-100 hours or annually.
- Use SF15W/40-SE lubrication oil.
- Ensure the oil drain plug is securely tightened after draining old oil and before refilling.

Obrázek 4: Přample of an engine drain plug location, important for oil changes.
5.2 Kontrola zapalovací svíčky
- Inspect the A7TC spark plug periodically for wear, fouling, or incorrect gap. Clean or replace as necessary.
5.3 Čištění vzduchového filtru
- Clean or replace the air filter element regularly, especially when operating in dusty conditions, to ensure proper air intake and prevent engine damage.
5.4 Obecná kontrola
- Pravidelně kontrolujte utažení všech matic, šroubů a spojovacího materiálu.
- Inspect fuel lines, electrical wiring, and exhaust for any signs of wear, damage, or leaks.
6. Řešení problémů
This section addresses common issues you might encounter with your X-PRO 110cc engine.
6.1 Motor nenastartuje
- Bez paliva: Check fuel tank level. Ensure fuel valve is open. Verify fuel line is not clogged.
- Žádná jiskra: Inspect spark plug for fouling or damage. Check spark plug wire connection. Verify CDI unit is functioning.
- Baterie: Ensure the battery is charged and connections are secure for the electric starter.
- Tlumivky: Ensure choke is properly engaged for cold starts and disengaged once warm.
6.2 Loss of Power or Poor Performance
- Vzduchový filtr: Znečištěný vzduchový filtr může omezovat proudění vzduchu. Vyčistěte ho nebo vyměňte.
- Palivový systém: Clogged fuel filter or carburetor issues can affect performance.
- Zapalovací svíčka: A worn or fouled spark plug can lead to misfires and reduced power.
- Hladina oleje: Incorrect oil level can impact engine operation.
6.3 Neobvyklé zvuky
- Volné součásti: Check for loose bolts or engine components.
- Nízký obsah oleje: Insufficient oil can cause knocking or grinding sounds.
- Únik výfuku: A leaking exhaust can produce a loud popping or hissing sound.
If troubleshooting steps do not resolve the issue, consult a qualified mechanic or contact customer support.
7. Podpora a kontaktní informace
For further assistance, technical support, or inquiries regarding your X-PRO 110cc engine, please contact the manufacturer or your authorized dealer. When contacting support, please have your engine model number (308-999020) and purchase information readily available.
You may visit the official X-PRO store for additional product information and resources: X-PRO Store on Amazon




