Fuel Injector Job 1990 200Q

[Blake Gibb]

Hi All, I need to replace the injectors on my 1990 200 Q. The car has
189k on it and this has never been done. Should I change the injector
"inserts" as well. How much of job is all this, any recent BTDT's.
Any suggestions for the removal and insertion of both the injectors
and insert would be great.
TIA
Blake Gibb
1990 200Q
189,880 miles
Pearl White
Still a Runner!