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Danielle SnyderAug 11, 2025
Why APRILIA Motorcycle engine does not start?
- KKristen VelasquezAug 11, 2025
There are several potential reasons why your APRILIA Motorcycle engine might not be starting. It could be due to issues with the fuel pump connector or the fuel pump itself. Check for continuity in the red/brown cable from the connector to relay 29 (injection load) and its ground insulation. Also, verify continuity between the blue/green cable of the pump connector and the ground connection. The starter motor connection to the vehicle ground could be faulty. You should also check if, when trying to start up the engine (by pressing the starter button and operating the brakes), voltage pulse is detected on the orange/yellow cable of the retention relay (No. 65) and on the red cable towards the starter motor of relay No. 64 (start-up remote control).
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