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toro snowthrower

This is a discussion on toro snowthrower within the Small Engines forums, part of the Tech Support Forum category. I have a Toro 3650 snowthrower. I started it up this morning and the rpm's seemed to be high. I


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Old 02-06-2010, 12:39 PM   #1
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I have a Toro 3650 snowthrower. I started it up this morning and the rpm's seemed to be high. I made a pass with it and it threw snow like a champ. When I let go of the handle and made the turn the rpm's dropped to what seemed to be a normal level. I pulled the handle back to start another pass and as soon as I hit the snow the engine acted like it was going to die out. It would only throw snow a foot or less. With no load on it the engine would continue to run fine. I replaced the paddles and the belt at the start of winter. I checked the belt and it looks ok. It's on correctly. The tensioner seems to be ok. I played with the spring up by the handle...changed the settings on the cable and ect. but it made no difference. It has ran fine up to this point all winter long. Any help is appreciated, John

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Old 02-07-2010, 04:14 AM   #2
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How old is the gas? Do you use a stabilizer?

With those symptoms, I would check fuel/carb.

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Old 02-07-2010, 04:26 AM   #3
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Make sure the mix is correct(it's a 2cycle correct?)
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Old 02-07-2010, 09:31 AM   #4
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Gas is fresh...mixed 50-1
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Old 02-07-2010, 10:02 AM   #5
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Probably a carb diaphragm then.
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Old 02-07-2010, 11:24 AM   #6
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i looked at it a little further today....as soon as the paddles come under a load they stop. belt is good. not slipping at all. it's like they dont have enough *** to keep moving. wondering if there is some sort of clutch assy or something that is bad. i put brand new gas in it. engine runs a bit smoother. may of had some bad gas, but the paddles wont keep running under load.
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Old 02-07-2010, 11:47 AM   #7
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Does the engine die down or the paddles just come to a stop?
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Old 02-07-2010, 01:21 PM   #8
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today it looked like just the paddles stopped. engine was running better today after new gas.
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Old 02-07-2010, 02:17 PM   #9
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Check the belt in the drive system, sometimes as they get older they stretch and slip.
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Old 02-08-2010, 05:12 AM   #10
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Quote:
Originally Posted by pipefitterlu42 View Post
today it looked like just the paddles stopped. engine was running better today after new gas.

Get some SeaFoam fuel stabilizer and add it into the machine at double the recommended mix. (company tech told me this) Run that tank out and things should better.

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