General 1971cc petrol engine----

[jontee61]

hi guys new to forum hope you can help just bought 1990 fiat motorhome with 1971cc petrol engine, which is running to lean (plugs are white) which of the two screws on the carb do what, and what are the right settings or were can i get info, any help or guidence would be appreciated.

 

[corkman]

Try this pdf:
http://ftp.psyborg.rpg.pl/bx/citbx.narod.ru/carb1.pdf

For old hands like my dad you can tune by ear and nose but for lesser mortals theres always gunsons colortune.

 

[jontee61]

hi corkman, big help thank you, all the best.