Many reviews on Amazon about "hyperflashing" when engine running for that relayI added LED lights, turn signals, brake lights. -> https://www.amazon.com/dp/B07Y8B5PB9?ref=ppx_yo2ov_dt_b_product_details&th=1
1982 Honda cm250. They work perfect with just the key ON. Like when the headlight kicks in. But when I start the engine, they go bonkers, flash wrong, etc. When the engine gets turned off, they act fine again. I added a 2 pin electronic flasher relay. LF1-S-PIN 150 max. Amazon site->
I have checked and rechecked connections, wire colors, etc. I don't see why they work correctly until the engine turns over. Any ideas? I think maybe the relay works up to a point, and then can't keep up? IDK...
My guess is that the higher voltage when engine running (over 13 volts) is too much for the relay to operate properly - a better quality (more expensive!) relay maybe the answer