[Cas]

Evening Guys,

Sorry for my bad english,

take in mind, im not a mechanic i just like to learn things,

this winter i decided to check my Husqvarna 610 engine because it had a slight ticking sound, and i was curious what the state of the piston/cylinder was in.

so i took the top end apart, and checked it all. The cylinder/piston were in good Shape, so whas the camshaft/chain. Only my exhaust valves leaked.. so i grinded them in the head again, and fixed it.

then i built it all together again, i set the timing correctly and adjusted the valves to 0.05mm in/ex.

i fired up the bike it started pretty fast. Only the ticking in the engine was worse as before. I decided to take it for a small ride and it performed amazing. Felt like i had more power then before the rebuild. The exhaust is popping just a litttle on decel, but always did that.
Mixed feelings about the increased ticking noice

i know these are loud singles but this sounds a little to much i think.

i didnt use any kind of gasket for my exhaust cuz i think that is not how it came stock right? I thought maybe an exhaust leak? Any suggestions guys?

video: 30 januari 2023

 

[rv6john]

An exhaust leak will definitely sound like a ticking noise at low rpm. You can use a piece of hose like a stethoscope to pin down where the noise is coming from

 

[salty_monk]

Did you get it figured out yet? Did you measure the timing chain? How many steps out on the auto adjuster were you? Maybe the chain is contacting the reed inside the case...