Ryobi RY28100 Operator's Manual - Page 12
Troubleshooting - carburetor
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TROUBLESHOOTING IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM CONTACT YOUR AUTHORIZED SERVICE DEALER. PROBLEM POSSIBLE CAUSE SOLUTION Engine will not start No spark. Clean or replace spark plug. Reset spark plug gap. Refer to Spark Plug Replacement earlier in this manual. No fuel. Push primer bulb until bulb is full of fuel. If bulb does not fill, primary fuel delivery system is blocked. Contact a service dealer. If primer bulb fills, engine may be flooded, proceed to next item. Engine is flooded. Set the start lever to the START position. Squeeze the trigger and pull the rope repeatedly until the engine starts and runs. NOTE: Depending on the severity of the flooding, this may require numerous pulls of the rope. Engine does not reach full speed and Incorrect lubricant/fuel mixture. emits excessive smoke Air filter screen is dirty. Spark arrestor screen is dirty. Spark plug fouled. Use fresh fuel and the correct 2-cycle lubricant mix. (50:1). Clean air filter screen. Refer to Cleaning Air Filter Screen earlier in this manual. Contact an authorized servicing dealer. Clean or replace spark plug. Reset spark plug gap. Refer to Spark Plug Replacement earlier in this manual. Engine starts, runs, and accelerates Idle speed screw on carburetor needs Turn idle speed screw clockwise to but will not idle adjustment. increase idle speed. See Figure 9. 10 - English
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