BIGRCR
Veteran
Location: Easley, South Carolina
| The low end needle on the Webra 35 (non Red Head) adjusts the mixture to about 2/3 throttle. This includes hover throttle. The high end needle controls the top end of the mixture.
On set up, first start out with both needles fairly rich. I do not remember the initial needle settings. You can start with the high needle around 2 turns open, open the throttle barrel untill there is a slit of an opening, put a length of fuel tubing on the fuel nipple and then close down (not seat down!) on the low needle and start to open it untill you can hear air blowing through and then open it a couple of clicks further. This should get you going .
If I remember correctly, I did wind up with the top end only about 1/2 turn open when I first started to mess with the engine. I reset the carb as above and then the needles returned to a reasonable opening.
I personally would not use more than 15% nitro in this engine. If you need the high power out of it, use a tuned pipe and low nitro, it works great!
Later,
BIGRCR John Garst |
