I have an older Ariens ST 2+2 snow blower (H30-35401T SER 8314B).

I did an overhaul (if that's what it's called) on the carburator last year pretty much at the end of the snow season. I purchased a overhaul kit from a local dealer, and replaced everything in it and cleaned the body with solvent. I thought it was working fine, but when I started it up this winter (on the first pull), although it ran fine and idled fine, when I engaged the auger, it stalls everytime. It's like it is either not getting any air, or fuel one or the other but only after I engage the auger. It idles fine. Any clue or direction and my back would be eternally grateful!!!

I also noticed that i can get it to engage the auger at full throttle with choke off, but when i thrust it into snow it immediately stalls. this is after substantial warm up time.

If the motor is old it may be due to low compression. If compression is good you may need to adjust the high speed needle, assuming the small orifices in the bowl nut are clear, initial setting of the needle is 11/2 turns from seated posisition (fully closed). Start motor, full throttle, if motor does not run smoothly adjust the high speed needle until it does.
keep us posted.
Dean

Thanks rent, I'll try it tonight if there's enough light, or maybe I'll do it in the dark.:thumbsup:

I have a small question, my blower has a diaphragm carburator, not a float type, is there still a bowl nut? I don't recall one when I tore it apart last year.

Rentahusband, my manual is calling out two adjustment needles, the main adjustment and the idle adjustment. Which one are you referring to when you say high speed needle? I am assuming you mean the main adjustment screw since you were also talking about the bowl nut which houses the main adjustment screw on a bowl type carburator. If that's the case, and mine doesn't have a bowl nut because it is a diaphragm type carburator, do I still ajust the main needle the same, 11/2 from seated?:confused:

Sorry, I was not sure what type of carb was on the motor.
Yes, the main adjustment would be the high speed, 11/2 turns to start then tweek it from there. Run motor at full throttle for final high speed adjustment.
How old is this thing.
Dean

Cool, thanks Rent, we have a big one blowing in this afternoon, I wish I could get it worked out before then, I'm not sure how old it is although I do have the reciept somewhere and the original users manual, a friend gave it to me and said that it had idle problems. I am thinking it may be the low compression thing you were talking about would that also cause missing? When it is idling I can hear a definite miss once in awhile nothing to bad, or pronounced. The strange thing is it starts on the first pull. What would I need to do to correct that, or is it a lost cause if that is the case?

I looked this model up and according to the diagram this one has a set of points, this may be the cause of the missing. The points/condensor are located under the flywheel. If the points are pitted it cound cause missing. Point gap is .020.
Dean

Thanks Rent, i adjusted the main adjustment like you suggested, and it worked like a charm. What a back saver. Thanks a million. I'll check into the points thing if it gives me more problems.

Great!! Have fun snowblowing.
Dean