Reply To: GT250R Carb Help!
All factory bikes i’ve worked on = 92.5 front , 95 rear on the 250cc models.
I wrote 95 front and 97.5 as upgrade jets because people start using freeflow pipes like black widow stainless and use proper afternarket cans such as Lextek OP1 , Black widow cans , MTC cans (not the crappy stubbies from china) and they put K&N air filters (not cones!) – never use cones.
This is to stop the bike leaning out on full throttle
Pilot Jets are size 20 front and rear, forever. (this size is more than sufficient for a 400cc even), so no need to upgrade.
The nut that snapped is called HOLLOW BRASS ACORN NUT , you will find it at the shop (purple button right at the top of the site black bar), it is very fragile! 👀
if the carb is that dirty , i implore you to change the INTAKE ORINGS that sit under the rubber sockets going the cylinders (inlet manifolds) , same rings are at the shop , use stainless bolts everywhere possible!!!