Saving Old Seagulls

The flock now numbers five!
This latest one is Numbered TC 453 W2 I was down the yard putting up masts and launching boats and noticed the Seagull clamped on a trolley.
Later on a friend came over for a chat and said you like Seagulls don't you? And gave me this one for free.
Got it started but not pumping water.
Any feed back on what I was given?
Cheers Dave,

Nice later 102. If its not pumping water clean out the pipes first, as it can be tricky to get rust out of the cylinder waterways.

Thanks for the feedback, haven't had time to look at it since getting it started. Can you tell me more about the pipes? The pipe from the block to the exhaust is clear plastic pipe and that is clear of rust. I can see another pipe at the lower end of the leg, how do I get that off?
Will investigate the lower leg eventually and see if there is any blockage of the water inlets.
Thanks again, Dave.