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Toro 724 power throw snowblower runs rough


dalel20's Avatar
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09-09-07, 07:10 PM   #1  
Toro 724 power throw snowblower runs rough

I just got a great deal at a yard sale on a 1998 toro powerthrow snowblower. $100 looks like new!!! It is the (classic) set for 2 yrs with gas so I cleaned and soaked the carb and now it runs better but is rough from idle to wide open. It occasionally pops through the exhaust. The mixture is lean because it smooths out when I trickle carb cleaner in the throat. This carb is non adjustable. A few other searches I did turned up that this is normal. Any truth to this. It has the plastic tube and I soaked it in Berryman with the orings installed too. I replaced the orings, needle and seat, blew everything out that I could see. Any help is greatly appreciated!!

 
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09-09-07, 08:12 PM   #2  
What brand engine is on it? Sounds like tecumseh. Did you clean the holes in the bowl screw?


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09-09-07, 10:22 PM   #3  
Toro 724 snowblower runs rough

It is a tecumseh HSK70 130282U. I cleaned the holes in the screw. There a 3 correct. 2 stright across and one at an angle.

 
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09-10-07, 02:12 AM   #4  
And one other hole - in the center - of the bowl nut that is quite critical to be clear. I've heard Berryman before, but only on this site and have no experience with it to tell you if you need to soak the carb again or if you need a different solution to soak it in, as I don't know the effective strength of Berryman.

 
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09-10-07, 11:59 AM   #5  
Just so you're aware, the part numbers I would have installed doing a reconditioning would be: 632760B, rebuild kit; 632735, emulsion tube; 640089, main jet/bowl nut; 640018, idle jet; 31688A, carb gasket; 27915A, in. manifold gasket. Also, I see Berryman has numerous products - per their website - so which did you use, specifically? The "Chem-Dip" or a spray product?

 
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09-10-07, 10:08 PM   #6  
Toro 724 power throw snowblower runs rough

I used the chem dip. That stuff really stinks. What do you use for dipping and how long do you leave it in?

 
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09-10-07, 10:21 PM   #7  
I used Berryman's for years because I didn't know any better, it has to be the most awful smelling product around, however it does work. I have since changed to NAPA cleaner which is Mac 6402, it costs a lot more but doesn't have the smell, you can actually get it on you and get rid of the smell, unlike Berryman's which has to wear off. Have a good one. Geo

 
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09-10-07, 10:38 PM   #8  
No doubt...berrymans stinks. I use it sometimes too. My wife can always tell when I've been messing with it when I come home. She hates the smell of it too. Works good though. Chemdip is probably the least effective dip I've used, but it still works well enough for most situations.


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09-11-07, 12:39 PM   #9  
We use Napa's # 6402 bath cleaner at our shop and have never had a carburetor not clean out that couldn't be. Only water-damaged -whether it be rust or corrosion - carbs can't be cleaned with the Napa cleaner and I doubt that there is any cleaner on the market that will reverse such damage.

 
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