Model Forum / Radio Controlled / Air Models / September 2006

This is by way of an apology to those nice guys at Ripmax.
My RMX 40 now sings a sweet song and seems happy with an 11x6 prop.

As I am from the generation who carefully ran in a new Mk II Cortina
progressively at 40/50 then 60 MPH maximum for the first 500 miles, I cringe
when I hear a new engine screaming its head off at max revs.

I  have now learned that you cannot get the correct setting on that mixture
screw if the thottle is not fully open,  otherwise she will almost certainly
lean out in flight. That is why I spent a couple of months practicing
deadstick landings.

My next mistake!
In order to keep my model as clean as possible I simply fixed a 1" plastic
pipe as muffler extension.
Dont even think about it,  the extra back pressure, ( varying with revs)
pressurised the fuel tank and  this fuel injected 2 stroke became very
erratic.
But that only gave me one apoplexy for one evening.

I like to share, it might save someones model.
Cheers
P