Integrated turn signals/brake light

I recently integrated my turn siganls into my dual bulb tail light on my '82 KZ750N with a standard trailer integrator from the local auto parts store but I'm having some problems. The turn signals blink when I switch them on, but when I brake they refuse to flash. Do I need different bulbs or a different flasher module? Or am I stuck with my external signals? Any help would be great, thanks in advance.
Mike

are you using the stock flasher or a different one?

its the stock flasher, I don't know what kind of resistance the integrator has, is there any chance of a different flasher would fix the problem?

Could you by any chance make up a wiring diagrahm to show us how you have it wired. It would be easier to help you.
Ride safe,
Les

you need an electronic flasher for led lights theyre 11$ at autozone when you hit the brakes the taillight switches to off causing the old flasher to "see" only 1 bulb without enough resistance. i use it on mine with the only drawback is the auto cancel doesnt work