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We have a short article called "Harley Davidson Spark Plug Threads - How to Fix" on spark plug thread repair kits used for first time repairs on Harley Davidson and other makes of motorcycles that has received a lot of attention lately. We've also been getting emails and phone calls on how to make a repair after a parts store insert has failed making the hole bigger. For second time repairs on M14x1.25 there's a Big Sert kit available. Big Sert is Time Sert's name for an oversize thread repair k …

DennisB WiseAutoTools.com © Summary: In this article we cover motorcycle spark plug thread repair using the best kits available. Harley Davidson spark plug thread repair as well as other motorcycles made by different companies all share the same solutions for stripped spark plug threads. Determine the size of the spark plug and we can help get the right kit. See below for more Time Sert repair kit information as well as the FAQ’s (Frequently Asked Questions). Need some assistance in getting the …