Oil Block off/cold weather jetting

[DeJay1206]

I recently put an oil block off kit on my girls Blaster when I rebuilt it. Should I have put a bigger jet in just because I'm premixing? Also, it's winter and there is snow on the ground... Do I need to jet another size up for the cold weather?

 

[Awk08]

blaaster suggests 1-2 sizes for premixing versus injection, as the oil/fuel mix is slightly thicker and the fuel is diluted with oil, throwing off the air/fuel ratio.

i do not have experience with this as i always deleted the injection while doing other mods, and then jet/plug chop for everything all at once.

i go up 2 sizes on my main jet when temps dip into the 50's and that seems to cover me down into the high 30's
i ride the couch in temps below that

 

[DeJay1206]

Okay. I'll throw in a 250 just to be safe.

 

[Blaaster]

Good move !