I have a 35 year old Ariens tiller with a tecumseh HH70-14438c engine. Would not start last fall. I suspected bad key. This engine has done this before but didn't have time to check it out then. Winter came. It didn't have spark when I tried to get it started this spring. I replaced plug & condenser and a new coil. Cleaned carb and put in repair kit. Wouldn't start still no spark. Timing was set at .080 BTDC, Points .020 and plug .030. When sliding new coil on, it seemed like sharp edges of armature was cutting into coating of coil. I took sharp edge off with a file. I've taken apart a number of times to see what I missed. Did filing the armature do something?
Thanks for any help.
Gene
Thanks for any help.
Gene