Karcher G 2700 R Operator's Manual

Ensure the water supply is connected and turned on. Move the throttle to the 'fast' position and the choke to the 'closed' position. Pull the starter handle until the engine starts, then move the choke to the 'open' position.
Use unleaded gasoline with a minimum octane rating of 87. Do not use E85, gas/oil mixture, or modify the engine to run on alternate fuels.
Change the oil after the first 5 hours of operation, then every 50 hours or every season thereafter. Use SAE 10W-30 oil.
Check for clogs in the nozzle, ensure the water supply is adequate, and inspect the inlet filter for debris. Also, verify that the high-pressure hose is not kinked.
Ensure adequate water supply and avoid running the engine for more than 3 minutes without pressing the trigger. Never block the exhaust or air intake.
Drain all water from the pump and hoses, add fuel stabilizer to the gas tank, and run the engine briefly to circulate. Store in a dry place.
Turn off the engine and disconnect the spray wand. Use the included nozzle cleaning tool or a paper clip to clear any obstructions from the nozzle tip.
Check the fuel level and ensure the throttle and choke are in the correct positions. Inspect the spark plug for wear and replace if necessary. Ensure the fuel valve is open.
Inspect the pump for any damaged seals or connections. Ensure all hoses are properly connected and not cracked or worn. Replace any faulty parts.
Remove the air filter cover and take out the filter. Wash it in soapy water, rinse, and allow it to dry completely. Reinstall the filter and cover.