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Showing results for tags '520h ignition coil'.
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I'm having trouble getting my 1990 520H going after 3 good years, the Onan P220. Last mowing going up hill it started to sputter, lost power and died. Towed it back to the shop and got it running, idled fine still sputtered at high RPM, got to my spot and engaged the PTO and it killed. Replaced fuel pump and went to try it....no start. Looked like weak spark on the front cylinder and no spark for the rear. I found the specs for testing the coil and the primary is fine at 3.5ohm. When I go to test the secondary I get a reading of 21,670. The book says the high limit is 19,800, I'm wondering if this is enough to cause a bad coil and my problem or if I should be looking elsewhere? Coil is the 166-0820 Used a test light on the leads from the ignition module out of the stator and the light surged so I think that means that is alright.
