Sean,
I reckon that's something of an understatement, as the perishing things allow water which has got through the air filter to get into the float bowls, causing a serious misfire.
Afaik, that's not possible with Solex carbs, or if it is, I've never seen it happen.
At last year's event, I had to dismantle the carb to remove the water from the float bowl, then wasn't too happy when one of the other teams mentioned that it was a known problem and they carried a small syringe to remove the water without dismantling the carb.
That sort of knowledge really should be open source...
As regards the variation in jets mentioned by Simon, the set as supplied to Mike Fox by the Race Club gave less than 20mpg in practice, so he asked for replacements.
These had been soldered up and re-drilled, which seems odd when one of the arguments for using a Weber carb was that jets were easier to obtain for them than for Solex carbs.
ken.
Sean wrote:
the webber carb seems to suffer when wet too so perhaps it was just the heavy dew?