Remember that performance of the engine, even when correctly used, will normally tend to diminish after a certain period of time due to the wear on mechanical parts. Therefore it is necessary to carry out maintenance and promptly replace any worn parts to censure the global efficiency of the whole engine. Observe the following instructions.
We recommend replacing the relative parts when you come across the following problems:
Engine noise becomes metallic and it becomes overheated more than usual.
Replace the front and back bearings, using the special tools we produce for this specific operation.
Power and acceleration performance are drastically reduced.
Replace the Cylinder/Piston/Rod block, and in this case it is best to replace also the bearings described above.
Minimum regime is unstable and the engine tends to cut out.
Again in this case it is necessary to replace the Cylinder/Piston/Road block as described above. It may also be necessary to replace the shaft, if a careful check detects visible scoring in the suction area.
Check also that the tolerance between the shaft pin and relative hole on the rod is no more than 6/10 mm.
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