i think you should just buy a new needle it would be alot easier.
what do you mean by air tube? the tube connecting the manifold to the carb, or the tube connecting the carb to the air box? either way they need to be replaced. You could take the carb to home depot and possible find some hose to work there.
I apologize if the carb on a 250r doesn;t connect to the intake manifold via a tube I don;t have one, but im just trying to understand the problem im not getting it from the posts thaty have been made.
1983 honda 70atc, als,ot done, need throttle cable and assembly. PM me if you have this.
1985 honda es 250 big red.
85 percent restore. 10x10 douglas 190's 22-11-10 at 489's. 12x7 itp c series 24-8-12 swamp fox. some accent painting. snorkel everything and a custom PCV system. moose air filter. cobra utility exhaust. 2.5 um wheel spacers.
A trike to show up the modern utilitys
2002 scrambler 400 2x4 uni pod filter, lots of weight shaving, v force reeds, HPD race pipe, 39mm pwk or 34mm, 12-1 head, trail porting, custom clutching, hole shots on t-9s +1 all around. works shocks . trail bike with drag tweeks.