Hi,
I'm helping a friend with his TRW250 (basically a B25).
It came to him with a huge file of bills running into the thousands. It looks great and starts, sounds good too ... but (there's always a but!) it does not idle.
It's on a premier concentric (one of the bills). It's a great looking carb but I'm a bit confused as the internal threaded hole where you'd expect to find a pilot jet is empty.
Shouldbit have an internal pilot jet or is the brass screw opposite the air screw the pilot jet?
Thanks
There's the mixture adjusting screw on the same side as the slide height adjuster, then the pilot jet is on the other side, a brass screw marked with an "X" on it's head.