Homelite UT10568 User Manual - Page 38

BAR AND CHAIN COMBINATIONS Chain specifications: 3/8 in. pitch, .05 in. chain gauge Length of Bar Guide Bar Part Number 14 in. 310625001 16 in. 310626001 18 in. 310627001 Chain Part Number 901212001 901212002 671258001 Drive Links 52 56 62 TROUBLESHOOTING Problem Possible Cause Solution Engine will not start. [Make sure on/stop switch is in the RUN ( l ) position.] No spark. Engine is flooded. Engine starts but Carburetor requires will not accelerate "L" (Low Jet) properly. adjustment. Engine starts, then Carburetor requires dies. "L" (Low Jet) adjustment. Engine starts but Carburetor requires will not run proper- "H" (High Jet) ly at high speed. adjustment. Clean or replace spark plug. Reset spark plug gap. Refer to Spark Plug Replacement earlier in this manual. With the on/stop switch OFF, remove spark plug. Move choke lever to RUN position (pushed in completely) and pull starter cord 15 to 20 times. This will clear excess fuel from engine. Clean and reinstall spark plug. Set on/stop switch to RUN ( l ) position. Push and fully release primer bulb 7 times. Pull starter three times with choke lever at RUN. If engine does not start, move choke lever to FULL CHOKE and repeat normal starting procedure. If engine still fails to start, repeat procedure with a new spark plug. Contact an authorized service center for carburetor adjustment. Contact an authorized service center for carburetor adjustment. Contact an authorized service center for carburetor adjustment. Engine does not reach full speed and/or emits excessive smoke. Lubricant/fuel mixture incorrect. Air filter is dirty. Carburetor requires "H" (High Jet) adjustment. Use fresh fuel and the correct 2-cycle lubricant mix ratio. Clean air filter. Refer to Cleaning the Air Filter in the Maintenance section of this manual. Contact an authorized service center for carburetor adjustment. Page 38 - English