I've developed a weak cylinder on my Walker, 20hp kohler (750 hours). I'm burning about 1/2 quart of oil every 5-8 hours and fouling a plug about every 10 hours. I know I need to get it fixed but I just can't find the time. Am I causing further damage by just letting it go until I can get it to the shop ? I do make sure it has enough oil and it's easy to tell when the plug is fouled. I'm using 10w30 mobil synthetic. I wonder if I could help it out by using a slightly heavier oil. I did put a fouler plug in it but it did not respond well. Thanks.