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Small Engines (Lawn Mowers, etc.)/no spark
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Question
iv been working my rototiller for awwile, and i have no spark, i no quite abit about motors but i cant figure this one out. Its a tecumseh H60-75480m, i uesed it a year ago and this year it just didnt run so i put new points and coil in it and i still have no spark. iv did everyhting i no to do and still cant seem to figure it out . i feel something is grounding it out . im lost , please help, what am i messing
Disconnect your ground wire from the coil. Test and see if you have spark. If you do you have a faulty kill switch/interlock safety switch.
you didn't put the coil in upside down did you? Are the points closing completely? Run a piece of white paper through the points to remove any oily residue. Oily residue will prevent an engine from sparking. The oil coating is put on the points during manufacturing to prevent them from rusting while on the shelf.
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Answers by Expert:
David R -GlobalTek LLC
Expertise
Small Air Cooled Engines and applications including Twin Cylinders. A specialist in the Chinese Engine-- i e LIFAN, LONCIN, ZONGSHEN, RATO, LCT, YAMAKOYO, DUCAR, GREYHOUND, (Honda Engine COPY) area. Have personally been to Chinese Engine factories several times Former Day to Day job is in application engineering of 4 cycle Engines. Evaulation, testing and failure diagnosis of Chinese Engines,Briggs and Stratton and Kohler engines daily. In other words I do this everyday.
Experience
30 Years in OPE industry. Briggs and Stratton Master Service Tech, Master Parts Pro. Former owner of OPE dealership servicing and selling Honda, MTD, Murray, Husqvarna, Toro, Lawnboy, Shindaiwa, Briggs and Stratton, Kohler, and Tecumseh. Previous job as trainer for engine manufacturer performing service training for companies like SEARS, HOME DEPOT, LOWES, TSC, etc. Instructor for Technical College.
Education/Credentials
Vo Tech Training 1981, Husqvarna Factory Training, Briggs and Stratton Factory Service School(s) Tecumseh Factory Training, Shindaiwa Factory Training, MTD, Hydrogear, Toro, Lawnboy update schools. To many to list in the past 30 years.
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