View Full Version : DT15HP Ignition to Carburettor Synchronisation

03-15-2016, 10:25 PM
Hello All,

DT1501-422155, build date 2003. Purchased in Australia.
Experiencing "4 Stroking" symptoms when accelerating from idle.
Checked carburettor and ignition both area appear to be "ok".
I have noticed that when the ignition advance place moves to full advance that it does not contact the carburettor "roller" until it is at mid way through the ignition advance cycle.
Can any one advise me on when should this roller comes to move to open the carburettor throttle please.