jetting for a pwk38?

[800screws]

this is for a lt250r, but i figured it most be close to what a honda runs...0-500ft, 70-80 degrees, 265 mx ported/piped 87 lt250r engine....whats a good baseline to start with using a pwk38 carb?
air screw, pilot, needle, main....thanks

[Honda 250r 001]

Esr doesnt make the jetting start specs for nothing...

[8686]

Originally posted by Honda 250r 001
Esr doesnt make the jetting start specs for nothing...

Edit: I'm not sure if they put that chart on their new site.




Anyways...this setup should get you close enough to fine tune each jetting circuit as you ride.

air screw 2 turns out
50 pilot
needle of your choice in the middle groove
180 main

Main might be a little fat but better safe than sorry. I'm not sure about the LT250R's stock ignition, but if it were a TRX250R with a stock ignition and you had any sort of compression to speak of, I'd gap the plug at 0.020. Hope this helps and keep us posted.

[CorvetteZ06]

Originally posted by 8686
Damn you say some dumb **** on here.




Anyways...this setup should get you close enough to fine tune each jetting circuit as you ride.

air screw 2 turns out
50 pilot
needle of your choice in the middle groove
180 main

Main might be a little fat but better safe than sorry. I'm not sure about the LT250R's stock ignition, but if it were a TRX250R with a stock ignition and you had any sort of compression to speak of, I'd gap the plug at 0.020. Hope this helps and keep us posted.

thats where I would start also