lucky escape!
Posted: Sat Jun 12, 2021 9:17 am
Hi Guys
just finishing off my H2c . it was almost ready to fire up and i thought i would turn the engine over a few times with the plugs out. i hear a bang and a very metallic clunk and rattle !
i thought it might be a ring snapping as it is freshly rebored with wossners in it, even though i did clean up the port edges with a file. so after turning it over a few more times i was drawn to the clutch cover and i thought i could hear something inside.
i whipped the clutch cover off and discovered that a clutch spring bolt had let go and snapped. on checking them all i discovered a lot of wear around the top of the threads on all of them. so i replaced them all and all is well. bike fired up 3rd kick and is nice and quiet. imagine the carnage if i had started it before though

a lucky escape indeed.
just finishing off my H2c . it was almost ready to fire up and i thought i would turn the engine over a few times with the plugs out. i hear a bang and a very metallic clunk and rattle !
i thought it might be a ring snapping as it is freshly rebored with wossners in it, even though i did clean up the port edges with a file. so after turning it over a few more times i was drawn to the clutch cover and i thought i could hear something inside.
i whipped the clutch cover off and discovered that a clutch spring bolt had let go and snapped. on checking them all i discovered a lot of wear around the top of the threads on all of them. so i replaced them all and all is well. bike fired up 3rd kick and is nice and quiet. imagine the carnage if i had started it before though
a lucky escape indeed.