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Old 01-19-2008, 11:30 PM   #1
Indy452
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Default Little Toro snowblower question

I picked up this little Toro two stroke snowblower a couple of weeks ago to add to the arsenal.

Its an older model from 1984. It has a little 2.5 hp Tecumseah two stroke in it with a diaphram carb. It runs real good and does a descent job with snow under 6".

I'm wondering why it smokes real heavy and bogs out when I tilt the handle way down? Its fine when I pull it back up. I realize I would never run it at that angle but shouldn't a two stroke especially with a diaphram carb run the same at about any angle?

Thanks, Neal


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Old 01-20-2008, 12:14 AM   #2
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Default Re: Little Toro snowblower question

Are you sure you got the mixture right? It sounds like it might be running too rich from too much oil in the gasoline. Check to make sure you are running the proper mixture for that machine.

Thanks for the pics!
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Old 01-20-2008, 11:58 AM   #3
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Default Re: Little Toro snowblower question

Looks "brand new", assume you did a real clean-up job before picture time.

While the mixture is important, I'd guess 32:1 for an older engine, I agree, why smoke in one position and not another, the oil is mixed (uniformly) in the gas and that is position independent. Maybe you spilled some oil on the engine. Is the smoke only out the exhaust? Not smoking on the muffler?
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Old 01-20-2008, 12:57 PM   #4
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Default Re: Little Toro snowblower question

Should run either way, I'd play with the mixture first.
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Old 01-20-2008, 01:46 PM   #5
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Default Re: Little Toro snowblower question

Dumb thought--Maybe fuel drains into the crankcase and when you tilt it it runs heavily into the cylinder? Maybe a fuel shut-off would be in order?? Shut off the fuel supply and when the unit starts to die, tilt it back and see if it starts running again.

Brad
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Old 01-25-2008, 11:42 PM   #6
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Default Re: Little Toro snowblower question

Quote:
Originally Posted by Brad View Post
Dumb thought--Maybe fuel drains into the crankcase and when you tilt it it runs heavily into the cylinder? Maybe a fuel shut-off would be in order?? Shut off the fuel supply and when the unit starts to die, tilt it back and see if it starts running again.

Brad
Thats a pretty good idea Brad. I've been mixing fuel/oil for a great long time and I'm not saying I couldn't screw up but that is 32:1 in there I'm sure. Its just a new find so I have ways of manipulating every little thing till its just about perfect. My guess is the fuel/oil in cylinder too. I can't think of any other reason.

I'll try a shutoff and see what happens. Most people around here are sick of the snow/ice /cold but I'm ready for more. Can't they understand I've got toys to try out??


Thanks folks.

Neal
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Old 01-26-2008, 09:52 AM   #7
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Default Re: Little Toro snowblower question

My grandfather had an older similar model which always smoked and would never really "tune" well. We ditched it several years ago-about the time I switched to fully synthetic oil. Maybe switch to a better oil, and lean it out a bit. Even though it appears to have very little use, it wouldn't hurt to pull the pipe and muffler and spray it out with some carb or brake cleaner.
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Old 01-27-2008, 12:36 PM   #8
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Default Re: Little Toro snowblower question

hehehehe i kinda like that blower housing that gold color really looks awesome first time i ever seen a gold blower housing


calvin but i give it a 10 for colorization


Quote:
I'm wondering why it smokes real heavy and bogs out when I tilt the handle way down? Its fine when I pull it back up. I realize I would never run it at that angle but shouldn't a two stroke especially with a diaphram carb run the same at about any angle?

i agree with brad and termy on this one it can be that very thing when it gets tilted it throws some mixture into the cylinder and it has no choice to smoke a little another thing is is there any adjustment screws on the mixture of that carb ?
i would check into that also could be too rich of fuel at high rpms or too lean one depends on where it starts to bogg down at when its running full speed or low idle ?

Last edited by lawnmowertech; 01-27-2008 at 12:42 PM.
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Old 01-27-2008, 12:47 PM   #9
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Default Re: Little Toro snowblower question

Quote:
Originally Posted by echoman View Post
My grandfather had an older similar model which always smoked and would never really "tune" well. We ditched it several years ago-about the time I switched to fully synthetic oil. Maybe switch to a better oil, and lean it out a bit. Even though it appears to have very little use, it wouldn't hurt to pull the pipe and muffler and spray it out with some carb or brake cleaner.
good choice there echoman the muffler on 2 cycle engines are a prime canidate for bogg down issues that muffler if it has a spark arrestor screen in it it gets clogged up the engine cannot push out exhaust or cant breathe hardly so it backpressures the exhaust and in turn can bogg the engine down i would check that muffler as well if it can be taken apart clean it up soak it in some parts cleaner solution and see if that helps clean out the deposits in the muffler

you can most likely do this procedures most the time without buying any parts also check the air filter a dirty air filter will cause running issues as well


hope this helps get her to running smoothly for you

calvin
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Old 01-27-2008, 05:14 PM   #10
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Default Re: Little Toro snowblower question

Most snowblowers including these models, didn't come from the factory with an air cleaner element.


That "gold" color you're referring to Calvin is zinc dichromate. It's a durable plating used in many forms including grade 8 fasteners to help curb corrosion. It's also used by many small engine builders on many different parts.
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