Losing power on a steep hill - Snowblower Forum : Snow Blower Forums
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post #1 of 29 Old 01-17-2017, 05:34 PM Thread Starter
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Losing power on a steep hill

Hi all,
I have a '76 or so Simplicity 828 with a Tecumseh motor. It runs great on flat ground and downhill, but going up hill (very steep) it seems like it's starved for fuel. This is a paddle wheel impeller model so the engine is turned 90 degrees from normal. I'm thinking that my float bowl isn't doing it's job (new carb btw). I was thinking about moving my carb primer to the control plate so I can give it a juice every once and a while. Anyone have this same problem? Would my idea work? Thanks in advance.
Alfred
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post #2 of 29 Old 01-17-2017, 05:43 PM
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Did the problem start after new carb?


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post #3 of 29 Old 01-17-2017, 05:52 PM Thread Starter
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I never ran it on the old carb. I bought the machine used and the carb was totally hosed. I did go cheapo on the replacement though. Maybe my problem?
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post #4 of 29 Old 01-17-2017, 05:55 PM
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Do you have some pics of the machine? I just redid a Craftsman blower with a Tec 11hp and it had the fuel pickup at the front of the tank???. Any tilt "uphill" would require the carb bowl to be the fuel supply if the tank was less than half full Extended running at that attitude would make the system run dry.
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post #5 of 29 Old 01-17-2017, 06:26 PM Thread Starter
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i don't have any pics, and can't get any right now because night. It does it on a full tank anyhow so I don't think that's the problem
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post #6 of 29 Old 01-17-2017, 06:29 PM
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I buy no name ebay carbs all the time, no problems with them. My first thought... like mentioned already, gas tank pickup. Or the angle may keep the float in carb from opening the needle.


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post #7 of 29 Old 01-17-2017, 06:39 PM Thread Starter
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I would think with a full tank of gas, if anything I would get better fuel flow up hill because of gravity. That's pretty much what i was thinking fisher. Some sort of internal friction keeping the bowl from filling (float or needle). What about the idea with the primer like I said in the initial post?
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post #8 of 29 Old 01-17-2017, 08:45 PM
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It's a temporary fix at best I guess. Maybe adjusting the float if possible where the needle attaches may let the needle open. I'm not sure if plastic floats can be adjusted...


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post #9 of 29 Old 01-17-2017, 10:02 PM
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New Carbs are not always perfect. I've had issues with float needle seats on new carbs before.

I would remove the bowl and apply pressure to the float to try to seat the needle better into its seat. Do this a couple times. Then use a 7/32 drill bit to set the float height.

5 minutes of your time, if it doesn't help then you've ruled one possibility out.

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post #10 of 29 Old 01-18-2017, 12:19 AM
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Do you know that it's getting leaner? Could it be getting overly rich? Can you hear or test for the difference? Applying the choke would be worse for a rich condition, better for a lean condition.

If it IS too rich, I don't know of a solution other than to slightly lower the float height.
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