L2900 engine smoking bad?

[garrettohio]

It was knocking so I tryed different injectors.it didn't help the knock and smoked.so I put the old injectors back in.engine never did smoke with them.now it does really bad.after putting them back.

 

[North Idaho Wolfman]

You really don't need to start a new thread all the time, just use the thread you had, I will put them together later.
You need to do a compression test!