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Old 11-29-2013, 08:00 PM
dnrsslr dnrsslr is offline
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Join Date: Dec 2003
Location: Ohio
Posts: 75
Thanks, at that link I found out the only difference between these two plugs is the "5" is a colder plug. How will this affect operation?

I just found out the filter and plugs were changed 4 years ago which was about 170 hours of mowing and about 20 hours of blowing snow. I wonder if the air filter was plugged?

By "adjust the valves", do you mean the clearance of the rocker arms under the valve covers? I think I did that about 135 hours ago but I'm not sure. Would you hear them "clacking" if they need adjusted?
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