20 hevosvoiman mopo osa 2: sylinterin poraus ja moottorin puristussuhde

In this video we'll bore out the cylinder of the S moped so we can get rid of the suspicion if the sloppy cylinder wastes too much power. At the same time I find out that there might be something wrong in the cylinder head. 00:00 Why it broke 03:27 Measuring the cylinder 05:30 What a piston carbon pattern means 08:17 Is the cylinder head bad 12:40 Casting more parts 23:00 Boring the cylinder 30:08 Honing 33:34 Piston ring pin 36:40 Machining the head 39:44 Thoughts