Billme
Key Veteran
Location: MS
| Great job Al, and GaryThis is the reason I don't jump in here, I want others to come in here and give good answers!
Al, and Gary gave Very good answers.... They get it
I'm here; I will add my 2 cents
Since you did two things at once, lets think about what happen...The low-end controls the most fuel flow. When you changed the fuel, and oil, you did notice something, and that’s good.... You call it rich, which it is, but I look at it as a less powerful cycle before you changed your needle setting. Why? The fuel is weaker because of its timing effect (slower burn), plus the dilution by the oil...You put a weaker solution fuel in your engine, proven by your previous needle settings..
The reason you had to open your high needle was to allow the high needle to make up for what is lost on the low because you closed the valve more to get the right amount of the weaker fuel to burn with the given amount of air...Doing this cuts the flow down to a point that not all the orifices are working on the low...Why? Because the pumped fuel supply is only delivering fuel to the needle...After that, its the needles job to keep the reservoir full for the orifices to draw from.. The butterfly controls the amount of airflow to allow the needed fuel flow by the action of the air passing by the orifice (very small hole...
Its a very delicate balance all the way from the metering lever of the diaphragm to the needles, to the orifices to the size of the Ventura..
I know you want to believe Zenoah on what they tell you in their printed material. I also know where they get it from instead of relying on their on sound engineering principles.... All I can say is I disagree period, for the sake of not starting a flaming war hehee
Regards,
Bill Meador |
