I installed an autodecompression exhaust cam in my 1999 WR 400F. Easy now to push starter down...just that the prior carb settings are not quite right...Could the new piston pressure/air/fuel mixture while starting require new settings? It takes about 30-40 kicks to get it started...same once warm and trying to start again after shut down. A remote fuel screw was installed on the carb at the same time...not sure if it is seated exactly as the prior screw. Thanks for any help.