jetting

[AnDy7]

I took out my 4 wheeler the other day and it didnt seem to have a whole lot of power. over the winter i have changed my main jet a size up to a 150. i changed it for the temp change and it ran fine, but now that its warming up outside im thinking that maybe its running to lean or rich? i havn't gotten time to check the plug yet because its at my dads house. any help would be great!

[ti2ibal1]

By temp change, do you mean over 35ish? I live in northern Ohio, and it hasn't changed that drastically here. It was warm (mid-40s) last week, but tomorrow we are supposed to get 3-6 inches of snow.

I'm no jetting expert, but I would think that a 150 main would still be OK for the current temps. I'm running stock jetting in my '06 and it runs a tad lean, so I'm thinking a 150 would be good until the temp at least reaches 45-50.

Like I said, I'm no expert, just my general observation.