Batavus ticking noise
I just did a 60cc kit on my batavus. This process consisted of taking the entire engine apart. I took the magneto and clutch off, separated the engine case and took the crankshaft out. The hole that the cylinder sleeve goes into had to be bore 1mm for the new cylinder sleeve. I had a professional engine shop bore it, slip in new bearings and oil seals and put the case back together with the new cylinder, piston, and wrist pin. I put the clutch and magneto back on and after a bit of pedaling, it started up, idled and ran very well. But it is making this ticking noise that seems strange. I'm pretty sure it coming from the engine and not the clutch and it isn't the piston hitting the cylinder head.