i did everything i can:

1. reset to flush - still flame out
2. replace with novarossi carb - stil flame out
3. replace new air filter - still flame out
4. replace new glow plug (argus, O.S) - stil flame out.

Note: compression still tight at TDC.

Additional question is can the go 7port P/S/C fit into this silver head 5 port? i plan to replace it.

Thanks in advance