Hello , just perfect....one question :which oil ratio do you use on UMS??? I"ve got a UMS 5-75 and buy you fuel pump and I don't knwo how mix oil for breakin and normal fct..thanks for your response
the original glow carb doesn't run well at full throttle. Above 2/3 throttle the rpm will not increase further. This is typical for glow carbs running with gasoline.
