The Aico Japan AC767-4 Knapsack Engine Sprayer is a petrol-powered agricultural sprayer designed for crop protection, gardening, orchards, pest control and fertilizer application. Its backpack-style design allows the operator to move freely through fields while the 4-stroke engine provides powered spraying without manual pumping.

🌾 Key Features

• 🏷️ Brand: Aico Japan
• 🔢 Model: AC767-4
• ⛽ Engine Type: 4-Stroke
• 🎒 Design: Knapsack / Backpack Sprayer
• 💦 Powered high-pressure spraying
• 🌱 Suitable for pesticides, herbicides and liquid fertilizers
• ⛽ Efficient 4-stroke fuel operation
• 🌿 Suitable for agricultural and gardening applications
• 🧱 Durable construction for demanding farm use
• 🚶 Portable design for moving through crops and uneven terrain
• 🔫 Spray lance and hose included as shown

⛽ 4-Stroke Engine

The AC767-4 uses a 4-stroke engine, which the supplier highlights for efficient fuel consumption and reduced emissions compared with typical 2-stroke operation.

A 4-stroke setup also means the engine oil is handled separately from the petrol rather than requiring a petrol/oil premix.

🎒 Knapsack Design

The backpack configuration allows the operator to carry the tank and engine while spraying, which is especially useful where a wheeled trolley sprayer cannot easily move.

This makes it practical for:

• Narrow crop rows
• Sloping farms
• Orchards
• Greenhouses
• Uneven terrain
• Remote sections of a farm

✅ Benefits

• Powered spraying without manual pumping
• Portable backpack design
• Reliable 4-stroke engine
• Suitable for several agricultural chemicals
• Easier movement between crop rows
• Good choice for farms, orchards and gardens
• Reduced operator effort compared with manual knapsack sprayers
• Durable design for regular agricultural work

⚠️ Operating Notes

• ⛽ Use the correct petrol and engine oil specified for the 4-stroke engine
• 🚫 Do not mix 2-stroke oil into the petrol unless the actual engine manual specifically says otherwise
• 🧪 Only use chemicals compatible with the tank, pump, seals and hose
• 💧 Rinse the tank, pump and hose thoroughly after chemical use
• 🧤 Wear gloves, eye protection, suitable clothing and respiratory protection where required by the chemical label
• 🌬️ Avoid spraying pesticides in strong winds
• 🔧 Check hose connections and seals before operation