85 formula Plus carb adjustment?

[Rustybux]

According to the Shop Manual for carb adjustment, it says:

1. Turn the idle-speed screw clockwise until it contacts the throttle slide then continue turning two (2) additional turns.
2. Tighten carburetor cover with throttle cable adjuster jam nut unlocked, press the throttle lever against the handle grip.
3. By turning the cable adjuster, adjust the carburetor slide cut away so that it is flush with the top of the carburetor outlet bore.


when I do this, the slides go where they are supposed to go with wide open throttle but when i release the throttle, the slides are higher than the Idle screws and they dont even touch the slides which makes the idle about 3500 rpm's. The slides dont go all the way down when release the throttle because the cable adjuster has moved the slide all the way Up.
Took it to the airport on the runway and got to the end of the airstrip and let it idle, then it just died. Plugs dry, lots of spark, tried priming and still no start....what can be the problem.


I hope that makes sense what I tried to explain.

I use the Shop Manual for Bombardier Snowmobiles.

 

[snoeproe]

your carbs are clean with clear pilot and main jets correct?
when i adjust/sync my carbs here is what i do.
with throttle at WOT, the slides should open all the way in the carb bodies. if they don't make adjustments.
make sure each carb starts opening at the same time when you push the throttle. if they don't, make adjustments.
when you get this far, start the sled and warm it to operating temp, then set your idle screws to obtain the proper idle.
how far are your air screws open? thats critical for setting the idle also.

 

[winter brew]

Turn the idle screws out so the slides will not touch, adjust and synch the slides using nothing but the cable adjustment on top. Don't even use the idle screws.