Hi guys and gals, new to the forums and want to share an observation.
I was once blessed with both a model 116 350 Alp and a model 85 250 Alp. Both used the stock Amal carb and to my knowledge were set up correctly in regards to timing, fueling etc.
The model 85 RIPPED and had great midrange and top end power...the thing was like a rocket ship when wound up.
The 350 was more like a tractor, lots of power but not nearly as wicked. It was almost 4 stroke like with a wide, consistent power band I didn't expect out of a larger displacement version of the previous motor.
Is there one single difference (like the 116s massive, ridiculous flywheel and counterweight) or is it a combo of porting, jetting exhaust etc?
The 85 is long gone and I love the 116 but I would really like to make this motor a little nastier.
Thanks in advance!