Atv stalling issue

[J0SH122]

So I did a valve seal job on my atv because the valve seals were leaking.I filled all instruction and timed it correctly and once I tried to start my bike it seemed to have too much compression which seemed odd to me then when I try to start it it starts but then dies and makes a phish sound like there’s air leaking out of somewhere or past the valves

[buzz]

valves not adjusted right,maybe.

[J0SH122]

I had the same thought and I adjusted the valves to specification but it didn’t work it still had the same issue