Basic Troubleshooting and Service Information

NOTE: THE SERVICE NUMBERS LISTED BELOW WILL GIVE CORRESPONDING CHAMPION AND AUTOLITE SUBSTITUTIONS. NOTE: Using an incorrect spark plug can cause severe engine damage or poor performance. TecumsehPower uses all three of the reaches shown. Service Number 34645 RN4C OH318EA (OHM90-110) † OHM120 OH195EA (OHH60), …