KR-1S.co.uk Forum

hey y'all it has taken me a while to find everyone but its all ok now.
i am in need of the wealth of experience which is abound on the internet , i have a kr1 which i have fitted a kr1s engine into as my crank was bust , unfortunately it didnt come with the carbs so i only have my kr1 pair , is there anyone who can tell me the differences between them and if i can make mine run the kr1s engine.
thanks.

I believe 1 & 1s carbs are the same, not sure about the jetting though but that's not really a hassle anyway.

all info you need is in the manual. if you don't have it http://www.kr-1s.co.uk/manual/

just put on KR1S pipes, change the jettings to S-specs and done

so what would happen if i used the standard exhausts off my kr1 , i do have whats left of a set of 1s pipes which were described as good condition for year but are dog rough with tz cans on,

Just get the 1s pipes painted up and stick them on. Use Black Bar-b-Q (Halfords) paint its cheap and looks great and then rejet. The bike will be about 5BHP up

will av to see how much i need to change and the cost , might be cheaper to find another pair of second hand carbs , n when i said rough i mean someone has tried to weld them n made an ar## of it

Stuff on jetting etc - which they don't tell you in the manual
http://myweb.tiscali.co.uk/teamsparrow/kr1stune6.htm