86 TRX 250R Jetting issues

Hello All,
I currently have an 86 TRX 250R quad cylinder being ported and bored by Forward Motion. Last summer we took this bike down to Sand Lakes OR and seized the motor up because I think I was too lean on the main jet. I just took the carb apart and found that I was running a #172 main, 50 pilot, and 3rd clip position on the 39mm oversized carb. Can anyone tell me what you are running for Jetting specs on this bike? and also where can I find a Jet kit for for a Keihin PWK39 carb?

Thank you,
Brad

Anyone out there with a TRX 250R?

TRX 250R Jetting issues

Ok, I just figured that since the motor on this quad is pretty much the same thing as a mid 80s CR 250 motor that it might be the same but now that I think about it, its probably not the same.