503 dc idle fuel mixture adjustment
in 2 Stroke Technical Questions
13 years ago
Hi guys, when I start my 503 dcdi the pto egt lags behind the mar end and gives no reading for maybe 20secs or till I open the throttle a bit more,
I was thinking the maybe the idle mixture for the pto carb maybe set to weak...or could it be that the mag end is to rich....anyway what the best way to synchronize them,
At the moment I just have them both out approx 3/4 turn,
Its a quite new engine and carb set-up with about 20 hours on it,
I have the carbs balanced as well as I can get them after setting them with a manometer,
The EGTs at higher revs are quite well matched....the engine is a bit lumpy at idle which is a tad over 2000rpm but smooths out over 2500rpm.
Nick.
I was thinking the maybe the idle mixture for the pto carb maybe set to weak...or could it be that the mag end is to rich....anyway what the best way to synchronize them,
At the moment I just have them both out approx 3/4 turn,
Its a quite new engine and carb set-up with about 20 hours on it,
I have the carbs balanced as well as I can get them after setting them with a manometer,
The EGTs at higher revs are quite well matched....the engine is a bit lumpy at idle which is a tad over 2000rpm but smooths out over 2500rpm.
Nick.
