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Re: Snow blower spark plug replacement
I would check it at the start of every season and clean it. If you note that it seems to be running rich and might have fouled the plug, you can always pull it and check it again. Probably not a bad idea to check it before you put it away for the season. As for replacement, it depends on condition. I would think that you should get two or three season's use out of it before needing to replace it, at least.
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First disconnect the spark plug wire from the spark plug. Then use a socket wrench to remove the spark plug. Install the new spark plug into the cylinder head and reconnect the spark plug wire. The Toro CCR 3650 uses a NGK BPMR4A plug gapped to 0.032".
If this is not a new problem but has been plaguing you from the start then you should check the space between the paddles and the tunnel. Sometimes there are considerable spaces between the paddles and the edge of the housing making the blower less than efficient. In this case I recommend a modification that would seal that gap by placing rubber inserts on the paddles tight to the housing so that there is no space. Here is a youtube video from a gentleman who explains this process simply and should be of assistance. https://www.youtube.com/channel/UCs8pPJCJf-4oHQGptU4lHyA
Well, There is nothing like a good repair shop to take care of a
problem. I would recommend looking at the diagrams at a site like
www.arcolawn.com and consider the carburetor rebuild kit fuel line and the primer. Inspect the parts on the machine and order replacments right at
the web site.
The carburetor bowl needs to be taken off and most likely the float and needle need replacing. When you prime the carb, this is shooting gas straight to the carb instead of traveling though the jets. This is a very easy task, but I know if you're using a snow blower you need it quick. The kit is about $5 and be sure to take your machines info with you.
No spark, lets start with the easiest, sure the plug is good? Not wet? With a clean dry plug still no spark, disconnect the kill switch, eigther at the ignition unit or at the switch itself (on the handle). If still no spark the ignition unit is bad. These are solid state they work or they don't. Hope this helps.