Saturday May 31st 2025

Saturday May 31st 2025 Mash 400 Dirtstar. Further efforts were made to get the bike to start. With a fully charged battery the engine still on spun over slowly but despite having fuel and a strong spark there was no sign of the engine firing. To make sure the slow starter speed wasn’t down to a fault in the starter motor, the starter motor was removed and taken apart but it was clean inside and free from obvious faults. There was plenty of life left in the brushes and the brushes moved freely. The valve clearances were then checked and set to the standard value of 0.07 to 0.10 mm for inlet valves and 0.10mm to 0.12mm for the exhaust valve gaps. There was a bit of a ‘ermm’ moment before the valve clearances could be checked, when a partially removed generator cover led to a large portion of its engine oil being deposited onto the floor rather unexpectedly. A hurried retightening of the generator cover screws and a lot of mopping up saw things back o...