Join Date: Mar 2008
Location: Alaska - 63North, 162West
Pop is correct. The EC44 is a 440 fan; the 488 fan is marked EC50. You will also find additional marks, at least on the cylinder castings, like 2PM or 3PM which indicate the series of the motor; the lower number being earlier. Many of these old engines will interchange cranks and crankcases with only the cylinder making the difference in size of the engine. (Of course they need to be carbed properly.)
I would not necessarily trust the fan shroud or flywheel - or even crankcase- to determine what the engine size is. You'll need to look at the cylinder castings.
A trail with a 440 would have been an earlier model as they went with the 488 for many years - until switching yet again to the 550.
The only thing I'd be much concerned about is using matching case halves to start. I've put a number of these older fan engines together without worrying about the crankcase component origins. Use the parts you have which are in the best condition and make sure electrical, fuel, and clutch are right and you should be good.
People here will help you with specific specs if you needs them.
Formerly known as 63November, and before that as Golsovia.
Riding since 1983.
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Last edited by 162Whiskey; 01-24-2009 at 10:38 PM.