carb"n up
I been running Lectons for over 20 years, well actullay I bought the first one to put on my modded 1979 ski doo wooped brand new Nordic. Burned her right down, but..........then I leared the do's and don't on sleds, they aren't bikes.
On a 2 stroke in the snow with a Lectron you will increase gas mileage a bunch, better throttle response, less effected by elevation/weather condtions and you will need a carb heater. They can set one up pretty good from the factory in Texas, but perfection will only be realized by more adjusting as you become familiar with how your bike runs.
Bought smart carb as the latest and greatest when they came out, they are still going through the same teething problems that Lectron had in 1981.
I bought a new model Lectron and ran it on my wr450 snow bike for two years.
Not as big a step up from running the Keihin as you find on a 2 stroke, better and cleaner but I wasn't as overwhelmed.
I put the Lectron on my WR partly to improve starting with the button, it didn't, but what I found was both carbs are toooo lean at idle to start easily. I installed a primer bulb on the WR, one little squirt of gas cold, count to 20, hit the button, instant start. Big long climb,engine blistering hot, turn it off and hard to start on the buttom. One push on the bulb, instant start, both Keihin or Lectron. Hot four stroke hard to start, THERE'S NOT GAS IN THE COMBUSTION CHAMBER, its instantly evaporated by the red hot motor.
Anyway, I run Lectrons on 3 2 stroke dirt bikes, a Ktm a Yam and a Kawasaki, the Kaw has a 30 year old Lectron off E bay for $20. The only real change in Lectron's in 30 years is the addition of power jet and more needle selection. So any old Lectron body and slide can be updated with plumbing parts or Mikuni parts to be as good as.
Have fun.