Originally Posted by
cmulder
What if there is a small plastic disk under the fuel nipple of the solenoid casing with the hole in it?
Also in setups where the solenoid is external from the carb just plugging the hole where the needle holder used to be might work too.
Then just use the original fuel nipple and possbly install the restriction disk under that.
Not having a needle stick out will make the carb much less vulnerable to crash damage like the os la series of engines.
On the other hand the simplicety of just mounting it on the needle holder also has advantages in other situations
It is a bit hard for me to do this from behind a laptop at sea because I have to do this all looking at it with "the minds eye" but thinking more about it, I would think that fitting a solenoid housing into the location of the NVA would stick out quite a bit and be every bit as vulnerable for crashdamage as a regular needle. I am less and less convinced of the practical advantages of such a set-up. Or at least, that they do not outweigh the hassle.
I am hesitantly coming to the conclusion that Chris' design for me is not feasible to have it made even in limited production. Too many variables. Very suitable for anyone with the capabilities to make one, or access to somebody that is willing to make it. Maybe Chris can do something with this, but I cannot. Not within a "reasonable amount of effort" and not for a price I would myself be willing to pay for it.
I am very sure that in time, I will have at least one of these Chris-Tech Throttle bodies (how's that for a brand and product name?
) and I am sure, more people will at least try and do this.
But for, just as an example, the fourstrokes, I'll probably stick with the separate solenoid housings as before. Because fourstrokes are a different animal alltogether when it comes to heat isolation of the carb, and what's worse, they near literally all have different designs for carb attachment and stuff, WAY too much trouble to redesign for every separate brand and type.