Ryobi RY08420 Operation Manual - Page 14

TROUBLESHOOTING IF THESE SOLUTIONS DO NOT SOLVE THE PROBLEM CONTACT YOUR AUTHORIZED SERVICE CENTER. Problem Possible Cause Solution Engine will not start. No spark. No fuel. Engine is flooded. Starter rope pulls harder now than when new. Check spark. Remove spark plug. Reattach the spark plug cap and lay spark plug on metal cylinder. Pull the starter rope and watch for spark at spark plug tip. If there is no spark, repeat test with a new spark plug. Push primer bulb until bulb is full of fuel. If bulb does not fill, primary fuel delivery system is blocked. Contact a servicing dealer. If primer bulb fills, engine may be flooded, proceed to next item. Allow the unit to sit for 30 minutes. Place choke in the RUN position. Hold throttle at full throttle and pull to start. If unit does not start within 15 pulls, replace the spark plug and try restarting the engine. Contact an Authorized Service Center. Engine starts but will not accelerate. Engine requires approximately three minutes to warm up. Allow engine to completely warm up. If engine does not accelerate after three minutes, contact an authorized servicing dealer. Engine starts but will only run at high Carburetor requires adjustment. speed at half choke. Contact an Authorized Service Center. Engine does not reach full speed and emits excessive smoke. Check lubricant fuel mixture. Air filter is dirty. Use fresh fuel and the correct 2-cycle lubricant mix. Contact an Authorized Service Center. 12 - English