Cbastian

I got some trouble with my carb. There`s coming a lot of fuel OUT of that crazy thing, and the engine ain`t running as I want.
The instruction book is gone, so I`m on my own, tired of screwing on the carb. The prop is a 18x12 APC competition.
Someone who can help?
Cbastian

E. Pocopagni

Hello Cbastian,
I have an US 41 that runs with no problem. I have the original leaflet at home, and I can scan it and send it to you within today.
Hope this can help, though leaflet don't say that much about carburetor setup.
Greetings.
Enrico

E. Pocopagni

Hello Cbastian,
I've tried to send you two files with the scans of the US 41 booklet, but the size of attachments is severely limited and if the image size is within allowed size, quality is very low.
I've tried too to e-mail them to you, but attachment aren't allowed.
Any ideas?.
Greetings.
Enrico

Cbastian

Enrico.
Just write those initial settings on the carb to me, and I will be pleased. I think that`s my problem. What prop do ypu use?

Cbastian

E. Pocopagni

Cbastian,

Normal settings are the following:
Hi = 1 1/4
Lo = 1 3/4
For both hi and lo jets, clockwise leans mixture.

I use a 20X8 on a 10 kg hi wing, easy flier scratch built, my own design model with a wing span of 2.90 m.
A friend suggested me to use a 22X8 to achieve more traction at lower RPM. I haven't extensive results yet.
Greetings.
Enrico

Cbastian

Thank`s Enrico.

Ceb

linclogs

You can also try US Engines website for info:

http://www.bestrc.com/usengines/