Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

I recently picked up a Airens ST1032 snowblower. It is in good shape but, when I bought it it was taken apart. The previous owner said it did not have any spark. I replaced the points and condenser and I also removed the cylinder head cover to check the condition of the piston and valves. They look good but i did notice a hair line crack in the cylinder head. (the part the spark plug screws into). It does not appear to go all the way through.

I am in the process of putting the motor back together, but with the cylinder cracked, I am also considering getting a new motor all together. How do i know if the head is trashed? It does seem to have a decent amount of compression, but it hard to tell, because i dont know what "normal" is for that motor?

It is a 10hp tecumseh HM100 motor

Any advice?

dvdkea wrote:
See if Trouts wants your old carb  to find out if he can analyze the problem.  He might be able to press it into service on a machine he's repairing. 

I hate giving in to a misbehaving carb!

I hope you looked on Ebay before ordering in the new carb.  Big savings to be had there on stuff like that.

I may just throw it up on ebay to get rid of it. I'm sure it can be fixed, but i just dont have the patients anymore. They new ones are available on ebay for about $10 less than i can buy locally. I'll buy local.

I have learned a lot about the st1032 already. Seems like it will be a good machine. I live in upstate NY and we had a very mild winter, but I'm sure we will get a lot of snow one of therse years...

Any idea what a machine of that size\quality would go for today?

   It does get a bit messy and frustrating to keep making adjustments with no result.  You may want to keep your carb around for another crack at it later.  The new carb will not have an idle or main jet unless you snagged an old NOS carb. 

I was able to get a NOS carb locally that does have all of the adjustments like the original one does.

I am assuming these are better than the non adjustable ones?