simplicity 860 cant get it to run. - Snowblower Forum : Snow Blower Forums
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post #1 of 4 Old 11-29-2018, 11:42 AM Thread Starter
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simplicity 860 cant get it to run.

Hello there!

Picked this snowblower up a couple weeks ago from a neighbor. I was told it needed a carb replacement or rebuild and it should be good. So I figured out engine model and I ordered a new carb off amazon. I know they are china specials but the reviews were good and someone on this forum had told me that it would be fine. So the carb came in and it bolted right on. So it still wouldn’t start. Figured out I had no spark. Bought a replacement coil and put it in have good blue spark. Tried to start engine still no luck. Here is the kicker when I continuously press the primer bulb it actually runs. It runs horrible, but it runs. I have heard that the the float likes to get stuck in the down position, well according to the internet, So I took carb apart and cleaned it. Still no go.

So I figured if I have spark and not running still must be a carb/fuel issue. So I bought a rebuild kit for the original carb and new fuel lines. Still dont run.

Engine seems to have good compression, I don’t have a gauge to get exact compression. Brand new spark plug.

The engine model number is 1090403 and the simplicity id tag says 1691376.

Any help to maybe what do next? Would be great! Thank you!
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post #2 of 4 Old 11-29-2018, 11:56 AM
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Is there a fuel filter on the fuel line? Perhaps something is clogging the line or the filter and you only get fuel passing through if you use the primer bulb for additional pressure?

How long was it sitting before you got it from your neighbor? Did you drain the fuel tank and put in fresh fuel?
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post #3 of 4 Old 11-29-2018, 12:02 PM Thread Starter
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Yes drained fuel. No fuel filter in the line. When i pull the line off the carb fuel comes out of the line. Not exactly known how long it sit. Probably the spring and summer. He did use it last year.
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post #4 of 4 Old 11-29-2018, 12:03 PM
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You have a fuel issue.

Remove, drain, and clean the gas tank; Blow air and use a coat hanger through the fuel line; remove drain the carb bowl into a clear glass jar so you can see what the fuel looks like.I

In the meantime, disassemble the old carb, remove the side Welch plug, blow carb cleaner through every opening, use a welders tip cleaner on every opening, blow again, then reassemble.

If it doesn't run on the new carb then you have a clean old carb to put on.

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