View Full Version : kohler CV25S weak spark

07-18-2007, 12:46 AM
Hello everyone I`m new to the site. The question I have is about a Kohler 25hp Model CV25S engine the family is SKH725U1G2RB. I was mowing and it was working great parked it and the next day it would not start so i checked the fuel and it was getting fuel next checked the spark there was spark but very weak. any suggestions thanks

07-18-2007, 01:59 AM
How did you check the spark? Is it still not running? Did you check both sides for spark?

07-18-2007, 08:08 AM
i put a spark plug on the end of the plug wire and turned it over i left the one in the head there was spark but real weak, and no its still not running

07-18-2007, 09:44 AM
How fast was it cranking. Did it sound normal? Hold the plug wire about 1/4 inch from the block and try again for spark.