Question about 1993 Harley Davidson XLH Sportster 883
I need to know how to do this from start to finish please.
Take out one plug at a time and insert compression gauge. turn the engine over until the gauge reaches its highest point. Reinsert plug and do the same with each plug. The readings should differ no more than 15 lbs. if they do pour about 1 tablespoon of oil in the low compression cylinder, if it raises it to normal you have bad rings if not you need a valve job.
Posted on Jan 23, 2009
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