No never used dye to find leak ..

Thanks. I've tried cleaning it well, but still can't find anything.

Do you have any experience with some of that dye?

You'll have to clean the engine & frame rail with contact cleaner and try to find the leak ...

Hey HondaMechanic,

If I recall correctly you also have Harley experience?

I've got an issue with a 1999 Roadking (first year twin cam). When parked it will drip a drop of oil or two from the right side frame tube, just below the cam case.

The problem is I can't find any trace of oil at any gasket surface anywhere ahead or above that area, and it's driving me nuts.

I had the HD oil cooler with the thermostat bypass on it since I bought it new. Everything looked dry, but it was the only thing ahead of the zip tie where the oil drips off, so I removed it and put the stock fittings back between the transmission housing and engine.

Still drips.

Any tips, suggestions or ideas?

Thanks.

Jeff.