Question about Husqvarna 160 CC Honda OHC Engine 21 in

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I have a Husqvarna 7021F with a 160cc engine that I purchased last fall. This is its first season of use. It ran fine when I put it up last, but when I got ready to use it about three weeks later, it would not start. After checking for spark and that it was getting fuel, I did a compression check with the sparkplug out. There is zero compression. Is it possible that the timing belt came off during the start attempt? If so, how do I put it back on?

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  • hcatter Sep 13, 2010

    Thank you, but do you have information or can lead me to info on how to put the belt back on if it has come off? Is it normal for these belts to come off? I will probably have to take it in for service anyway, but I would like to know enough about it to handle it if it happens again.

  • hcatter Sep 15, 2010

    After some investigation and finding a stuck intake valve, I found out that stuck valve is not covered on the warranty, because it is fuel related. Also, it turns out that this is not uncommon in these engines. I was able to free the valve after removing the carburetor, valve cover, and valve spring and using a lot of carburetor cleaner. I must have been using some poor gas and got varnish on the valve. Sorry about leading you astray with the belt-coming-off idea.

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SOURCE: Honda 160cc mower engine starts and dies.

Your carbeurator is crudded up. Get a can of aerosol carbeurator cleaner at any auto parts store. Remove the air filter and spray two squirts of cleaner into the air intake. Start the engine and keep it running by squirting more carb. cleaner into the air intake. WIth a little patience you will clean your carb. and solve your problem.

Posted on Sep 14, 2009

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