Re: LTa 50 weak weak weak need some help!
I think the biggest issue with the LT50A is the lack of a transmission. Although I have not spent the time to do most of the mods listed, I know ahead of time that it's a loosing battle, performance wise, due to the lack of a tranny. It's too bad, as the chassis seems to be better than anything else in it's size class (not that that's saying much).
Kai- due to the low temps, you may need a bit more fuel than the rest of us. It may behoove you to experiment with the air screw, or even move to a larger pilot jet (stock is 15 I believe).
I'm running a drilled air cap lid, removed intake and exhaust washer restrictors, with the 1st pilot (which is a 0.38!!!) removed, and a 70 main. We went riding the other day in the snow and I ended up moving to a 75 main, but will probably move back to the 70. Changing to a heat range 5 (stock is 4) plug seemed to have a positive effect too. Bike starts great, btw.
Chuckc- you may also want to experiment with a 5 or 6 heat range plug. Have you removed the oil injection?
Edit: Bad speeling...