Topic: 75 cb550f won't startup when warm

[palo86]

Bike died on me a couple times this past week. Accessories would stay on, but seems like I would just lose spark. Just like hitting the kill switch.  Bike will not start back up right away, but after letting it sit for a few hours it would start right back up and run fine.

I have a dyna ignition and coils. Also I recently changed my front turns to leds and my rear brake light bulb to a led.

Chris

[strynboen]

try to thek the main key..it often korodes and heat..burning the konneltions.( plastic back part).and fail often when it heats up..
you have thanget all others often failing parts..so think this is the only left part..but thek fuse pack too..it can burn the back side and give loosen konnektions..WHO not can be seen from autside..(have to been taken off to thek)

[calj737]

This is a more common than not issue with some Dyna ignitions. It seems that after getting warm, one side of the plate loses power. Are you coils 3 or 5 Ohm (Green is 3, Black is 5).

The power feed to the ignition is probably in question. Should be the BLK/WHT wire coming from KILL switch. Check for a short and continuity on it.

[palo86]

Running the stock 5v coils