rough

I have a kohler ch25 engine on a toro zero turn .. was reading thought some posts it is like the one bear369 posted runs very rough both coils are firing.. did a compression test both cylinders have about 150 psi on them .. has a lot of crankcase pressure it will blow the cap off the oil filler...

Hi all - wondering if there are any of you who may have a good conceptual understanding of the elements in play for my engine problem. The problem is that the machine struggles to start and runs rough. A quick check of the plug confirms rich too dark and not tan colour. Today I went into it in...

Hi guys, I recently purchased a second-hand Husqvarna LC19 with a briggs and stratton engine on it. It was in bad shape when I got it not running. I did a heap of things to get it running but still running a bit rough. Symptoms: - Rough idle - Adjusting carburettor screws seems to do...

Simplicity Regent 12 witha 12.5hp Briggs 289707 1 cylinder 4 stroke running incredibly rough, smoking, stuttering. On lower power settings it will smooth out for about 3-5 seconds then die, on high power settings it stutters and runs extremely rough, never smooths out. Has an integrated...