The noisy tick became more of a knock ( front right hand side of the engine ) and warranted more investigation, all the info on the forum pointed toward cams , cam followers, cam chains etc so we were surprised to find all of the said items looking very good with little signs of wear ( certainly not enough for the noise heard ) so we delved a little further and removed the front cylinder head whilst the engine was in the frame. Low and behold we can see some slight shiny marks on the inside of the head and the R/H piston has movement ( approx. 2-4 mm) up and down. Left hand seems fine. Drained oil and no obvious metal filing coming out, maybe caught it just in time. Unsure of previous history and engine KLMs, all looked to be in reasonable condition when I started the project last year.
Going to get the motor out of the frame today and will have to strip to see what damage is done to what seems like a big end issue. Bugger really as I had most of the rest of the bike completed thinking I would only need to do some top end work to stop the then quieter ticking.
Does anyone know if compete engine gasket kits are available in Australia? I have found some in the UK and France, or individually from CMSNL ( price prohibitive )
Are big end failures a thing with this cam chain type engine?
Any comments reply’s as to watch out for when doing this work appreciated.