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woodmaster
May 6, 2012, 12:04 PM
I have an 18 hp briggs and stratton engine. It was not running right. I put in new plugs and I noticed one plug was pretty clean and the other one was black. I had the engine running for a bit then it dies. I felt the plugs and the left plug was cold and the right plug was hot. I do not believe the left plug is working or firing. What could be the problem??

Mike

crigby
Jun 26, 2012, 03:09 PM
Hi,
If it is an opposed twin, a plug wire has probably failed. If it is a v-twin, then a coil has failed. I assume here that both sides have compression.
Peace,
Clarke