Maybe you guys can steer me into the right direction. I have resurrected a 1980 FL250. I have upgraded the exhaust to a racing pipe. The Engine has new seals, and bearings. Had the cylinder bored (can't remember how much), and has a new wiseco piston kit to match the bore. This setup ran good with stock carb, but the Ody was always tempermental the first 10min warm up. Now, I have upgraded the carb to a 32mm Mikuni. It starts up and idles good, but the top end seems to flood the Engine. Got a jet kit with the carb to go 1 higher and 1 lower on both the idle jet, and the main jet. Can you point me in the right direction to tune it in? I live in Reno, NV so elevation is a part of the equation too. Can you help? Or point a direction to a post I can use? I am new to this site and still browsing it.

i don't see a return line to gas tank - where is the "t" connector?

OMO

Whats on the end of the exhaust pipe?

Is there a good seal around the intake manifold - where it bolts to the jug? the intake does not appeat to be retangular like stock - is the opening a match to the jug?

I've only delt with stock intake boots is the reason i ask.

I also agree with the tee being needed to regulate the gas going to the carb, by diverting excess gas back to the tank.

Any of you 250 guys ever swap the carb???

Will also redirect the fuel lines as soon as I figure out a good place to mount the mikuni fuel pump. I really don't like how close the fuel lines are to the cylinder, but want to figure out one problem at a time on this old machine. As you can see I need to clean up my wiring too. I had to rejet the stock carb, when I put the pipe on, had to run it richer, and got a real difference. Which is why I went to a new bigger carb to allow more air into the mixture, and the stock carb was wearing out (alot of play on the slider).

Do you guys have a jetting chart on this website? Maybe I can figure and experiment something from that.

On my FL250/CR250
Mikuni 34mm Roundslide (should have gone to a 38MM flatside - darn)
Main jet: 310
Replaced Needle seat 159 Q-0
Pilot jet: #35 - Needle 2 notch top
Idle/Air screw 1 3/4 turns out
Replace fuel needle/seat with 2.0(might also try a 1.5)
this is into a mossbarger reedcage on a 73/74 cr250

OMO

yes - for stock setups

Well, well well, I finally have a close Ody neighbor. Greetings tydirium and welcome. I am just south of you in Carson City. The elevation you ride in is playing a major factor in jetting of that beast. Also another factor that is going to cause jetting variances is the temperature and humidity.

Are you familiar with 2 strokes and jetting issues?

Give us a list of what jets are in your carb.

Oldmanody has a carb that is pretty close to what you are running so the jetting information he gave you should be close all depending on what elevation he is at.

What elevation are you at Oldmanody?

Rand

give or take a foot or 2 = Tulsa, Ok is 677 ft above sea level

omo

you're probably rich then, unless you told the sellers about the elevation...

yea, any motorcycle shop, but bring your magnifying glass...

Unfortunately can't do it in such short notice. I have to suffer through going out riding on my buddy's wife's Polaris Sportsman 400 up the back side of duck hill in Carson City this morning.

Then when I get home I get to figure out why the wife's Ody doesn't have spark.

You have fun and good luck!

Rand