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Mend Honda Izy 4.5hp Lawn Mower Engine Problem Spark Plug

Honda Izy 4.5hp Easystart - miss firing?

I've cleaned the spark plug, but after two/three mins it starts to miss fire and the power drops quickens up and drops again. The spark plug is covered in soot again and black soot fires out of the exhaust when starting and during use - any ideas as to what is wrong?

JL
May 2011
HondaHonda Izy 4.5hpGarden Tools, Lawn MowersLawn Mower Engine Problem Spark Plug
Remove air filter and run for a moment without it in- if it's better then replace air filter. Have you changed the plug? If not change it and then try again- this engine has a habit of getting through plugs.

pleasant
May 2011
Soot on the spark plug means that engine is running too rich.
Could be a blocked up air filter or perhaps mixture needs adjusting

Maurice
May 2011

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Honda Izy 4.5hp Missfiring - Help & Advice