I have a 1988 LT250r and changed from the stock carb to a keihin PJ 34mm from a honda 250r and was wondering if anybody has any idea what the jetting should be. its got a 48 pilot and 152 main jet and its set at 1 1/4 turns on air/fuel screw just wondering if jetting is the right size. It has bills pipe and FMF power core silencer and v force reeds and is bored 60 over everything else is stock and it does have the air box and lid. PLEASE LET ME KNOW WHAT YOU THINK! it idles petty good.
Sound like that would be lean on that setup,
which jet main or pilot? it had a 52 pilot in it first but it would not idle unless i gave it gas so i put in a 48 and now it idle's
Sorry about the mix up, the reeds are boysen power reeds.
i run a 190 to 180 in a 38-39 air striker, and i think a 45
its better to be rich than lean, do you have other jets to use or will you need to buy them.
Just one question. What was wrong with the Mikuni?
If it idles take it for a Quick ride don't stay at any throttle setting for long. Crack it wide open for a second see if it cleans out. If it does go up 10 on the main and do it again keep doing that until it won't clean out then back off 5 and see if it cleans out.
Read my jetting post FOR DIALING IT IN after that.
+1 for reading Iceracers jetting thread. My 250 with a 39pwk runs pretty dam sweet now that I sorta, have the carb figured out n stuff.