- Mon Jun 22, 2020 3:51 pm
#90944
Looking at our hosts exploded drawings of my engine, i see it should have steel washers under the cylinder head retaining nuts, the 2 inside were missing, also found some pencil writing on the top fin of the barrel, so it looks like the head has been off before.
looking at the Head, the inlet valve is sooty black, and the exhaust valve is totally white, i think i may be running very weak, main jet size is 117.5 ( i can post a pic if required). i have a 125 main jet will fit that, spark plug reading is more white than light brown. But it is a lean burn engine!
Lucas reg/rect ordered , also improved composite head gasket, ex gasket and numerous lamps (bulbs go in the ground).