PDA

View Full Version : atc250r


h450rider
11-24-2005, 08:18 AM
Hello I bought a 85 atc250r
Its all stock, do you know what size of carb have it??
and what #main jet come from stock??
deathman53
11-24-2005, 09:29 AM
34mm and 145-150. the main jet varies alot based on engine mods. mine uses a 175, but mine is far from stock.
JTRtrx250r
11-24-2005, 01:58 PM
85 came stock w/ a PE37A 34mm roundslide w/ a 142 MJ and a 52 pilot
deathman53
11-24-2005, 02:44 PM
wow, a 142, thats small, I guess it shows how a pipe, open airbox, reeds and a aftermarket carb open up airflow and power. All of my r's have used a 165 at the minimium.
JTRtrx250r
11-24-2005, 03:11 PM
Originally posted by deathman53
All of my r's have used a 165 at the minimium. I hear ya there, mine's right about a 168 if I remember right, w/ my Mikuni... Im around a 380-420 main, it seems to vary and the Mik seems a bit more picky than the Keihin haha