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Delsley Jr
Delsley Jr, Mechanic
Category: Small Engine
Satisfied Customers: 689
Experience:  Handyman & Small engine repair Business owner
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Toro 521 snow blower wil not start. Manual start model. Sometimes

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Toro 521 snow blower wil not start. Manual start model.
Sometimes pulling the starter rope pulls it all the way out
with no tension; sometimes part way gets tension; sometimes
right from the beginning. Spark plug ok. This is MN, using last summer's
lawn mower (4 cycle ) gas.

1. Is starting mechanism bad?
2. Could gas be bad?

Thanks - Dave R
HiCustomer....Yes, it sounds like the starter rope assembly maybe worn or broke. Depending on your model of engine on it but on most engines there are two little arms that come out and catch that have springs on them, if the springs break it will cause this problem.
Customer: replied 7 years ago.
It's the Tecumseh engine. Is this problem enough to keep it from starting?

When you pull the rope and it feels like theres no tension on it, you need to determine if it is the rope assembly not catching all the time. You can do this by removing the spark plug and holding your finger over the hole and see if there is any compression. If the rope assembly is not catching all the time it can cause it not to start if your not getting a full pull on it. If the rope assembly is catching good and you may have a compression problem, like a valve sticking open on it, this will make the rope fell like there is no tension on it also.

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