I am working on my neighbors Coleman generator with a Robin/Subaru EX 30 engine.
The coil was bad so I ordered a Sten's replacement at less than half the OEM price. The new coil had no low rpm spark.
Emailed the supplier and he immediately sent a replacment. I installed the new replacement and the firing is so advanced that it pulls the rope out or your hand. That HURTS. Double checked everything, including fly wheel key, and all seems ok.
Two bad coils in a row. I just ordered an OEM coil for $77 plus shipping.
Anyone else experiencing after market parts problems?