INSTRUCTION MANUAL - Alessandri srl

92 ––––– 5. MAINTENANCE(2) Checking and adjusting the fuel injection valveAs the adjustment requires specialized knowledge and skill, consult your dealer. This adjustment is needed toobtain the optimum injection pattern for full engine performance.(3) Adjusting intake / exhaust valve clearanceAs this adjustment requires specialized knowledge and skill, consult your dealer. The adjustment is necessaryto maintain the correct timing for the opening and closing of valves. Neglecting the adjustment will causethe engine to run noisily and result in poor engine performance and other damage.