Hello all, new member looking for some advice.

I recently purchased a 1986 Suzuki LT250R QuadRacer. The previous owner brought it from California and mainly used it at Glamis. I am stationed at Holloman AFB near Alamogordo, NM. My avarage elevation and riding temperature is 4,300' above sea level and 65 degrees.

He replaced the original 34mm Mikuni with a Keihin PJ36 and I have no idea where to begin with the jetting so I can fine tune it.
- UNI filter
- FMF Fatty Gold pipe
- FMF TurbineCore spark arrestor
- Boyesen reeds

When I took the carb off to tear it down and clean it I noticed it had a 62 pilot jet and a 158 main jet. The needle jet was clipped on the 3rd clip from the top (middle) and the air screw was 1-1/4 turns out. He also had the wrong spark plug in it, I put the stock NGK B8EGV. I also drained the tank and put fresh 91 octane at 35:1 premix in.

I have been doing some research online and a 45 pilot with a 160 (varies from 152-168) main jet, and 1.5 turns out on the air screw is pretty common. Right now I have a 48 pilot and a 158 main jet in, needle clipped on 2nd ring from the top and the air screw at 1-5/8 turns out. This carb has the idle incorporated in with the choke knob, which has 9 full turns of adjustment. It will not idle unless you set it for 8-1/2 turns CCW.

1. Will dropping down to a 42 pilot help my idle issues?
2. should I put a 162 main jet in before I start my plug chops?

I am pretty sure the needle is good, revs quickly, doesn't bog.

slide is mirrorlike, needle looks good too

I do not have a stock 34mm Mikuni, I have a Keihin PJ36 carburetor

well, I am stuck at Holloman in NM until Dec 2013, and have no intentions of moving to Cali. By trade I am an A.G.E. Tech, but right now I am the NCOIC at the MTF. I have done a little bit of everything over my 15 year career. I worked TA, MHU-196's, QA, VCNCO/AFDPM, TAS Monitor/CTK Custodian, WRM manager/Equipment Custodian, UDM, BEAR Base, UFPM/PTL, Instructor, Distance Learning/E-Test Proctor and SABC/CPR Faculty. I have been stationed at Barskdale (3 yrs), Kadena (4 yrs), Minot (3 yrs) and Osan (1 yr). I have been TDY to Nellis twice and deployed to Iraq.