Engine not idling right

[jondee86]

You need to get the idle up to around 1000 rpm and see if it stabilises. You
can do that by winding the main throttle stop (between the centre two
throttles) up a turn ot two. At 500 rpm the engine is unstable and on the
verge of dying.

Are you sure you have your water temp sensor plugged in ?

If we assume that timing is good, and the ECU has the same settings as
worked before, there has to be some simple matter that you are not seeing.

Cheers... jondee86