Model Forum / Radio Controlled / Water Models / July 2008

can someone tell me the base line setting for a 254 carb thanks

i know that they rate carbs by the ventury size butt what does that
mean
what i really whont to know is how do i figure out the proper size carb
for a 25cc homi by the numbers. like the way you can figure what size

i am all most done with my first boat and decided i need a big rig to
pull it does any one know where i can find a site like this one butt
for big trucks or any website for semi trucks thanks

I'm building a roundnose hydro and i still need the electronics for it.
I have two brushed electric motors, custom built shafts, but i still
need a transmitter/reciever, one ESC, and battery. i'm not picky, dont
need new stuff, just something that works since im on a limited budget.

I have a hull that suits 2 engines, I´m going to have the CMB90 or A-90
HP!
How do I make one of these contrarotate without messing around with
gearboxes?

Wondering if anyone can give advice.
I am running a ofshore v hull with a 25cc cy motor,at this weekends
racemeet I started to get interferance.
This eventualy resulted in a runaway,after checking all the obvious

Im no guru on controllers and reasonably new to model boats tho have had
some years with 1/8th buggies.
I have just changed from AM to FM and use Jr's X3 transmitter and love
it. Being able to set the end points and sensitvity to steering etc,

Can anyone help me with props. I have been using 3 bladed propshop props
on my aeromarine xxx with a MHZ Z drive i tried a 6717 and a 7016 and
they seem to slip at take off and then dont seem to let the engine rev
either, i changed to a MHZ carbon prop 2 blade 76mm and the boat ...

allright cool thanks.
i will stick with the zenoah carb then.
thanks again
andrew

I need to use a solenoid in a damp environment and wondered if anyone
had advice on how I could waterproof the solenoid. I'd considered
polymorph to encase the main body but I'm not sure how to get a seal
around the plunger, or encasing it entirely in something with a side

hi guys a nother day a nother question.  
guys im just trying to work out how far away  it is best or how
close to a fibreglass hull can you let a tuned pipe sit when its
mounted inside a hull .

can someone help me?
i m looking for the ARNOXI plans
thanks inadvance

What are the carb screws set at now? and has the carb been off lately,
also any engine mods?

Hey everyone, I  just signed up for the website today hoping you guys
can help me out.  Im looking to build a simple RC boat(Electric).  The
first problem i have is not know how RC electronics work...How does the
the signal from the transmitter go to the reciever and then in turn