Bonjour,
Richard, as I Wouldn't have been confident if I had done this repair, I have choose to pay and the more you pay, the quicker the repair is

As said in another post, I have had problems with all my chinese Hit & Miss engines and I have not been able with my friends to repair one, it is no just a piece of metal sleeping on a shelf

That is why, if I can, I favor local purchases.
To empty my boilers, I use a silicone pipe, I suck up the water and let gravity do the rest.