Craftsman snowblower with Tecumseh engine - Snowblower Forum : Snow Blower Forums
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post #1 of 3 Old 03-04-2019, 01:01 PM Thread Starter
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Craftsman snowblower with Tecumseh engine

So my snowblower has been hard starting. I don't ever remember changing the spark plug (sorry guility). The plug that was in there was a Champion RN4C. The manual states Champion RJ19LM. I replaced it with another RN4C. This snowblower was purchased new. Some of the info on the net states that if it is a Tecumseh engine it should have the RJ19LM. The difference in the plugs is that the RN4C has a longer "reach" 19mm versus 9.5 mm for the RJ19LM. Has anyone else experienced this. It is a 26" Craftsman snowblower purchased maybe sometime in 2007. Thanks
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post #2 of 3 Old 03-04-2019, 01:31 PM
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post #3 of 3 Old 03-04-2019, 09:14 PM
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Is the hard starting something new or has it been that way all along since you've owned it?

Anyway, for the price of a spark plug I'd just get what the manual says, the Champion RJ19LM and see what happens. Even if it is a shorter reach the way the gases swirl in the chamber may be the issue, and the longer reach is the cause of the hard starting. This is just going on the idea that the folks who wrote the manual probably know a bit more about the machine than some guy on the internet.
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