Just aquired a seagull as part of a dingy, until then hadn't seen or heard of one.
It's a FP older running on 10:1, number 3 needle villiers carb.
It looked fairly in good order so I bit the bullet and tried to start it, on the 10th or 11th pull it roared into life and stopped dead - a quick check and some more hours reading on the website and reset points (they were actually shut all the time!), re gapped/cleaned plug and decided to try again, it started on the 3rd pull (I am testing in a wheelie bin of water, filled just above exhaust). I then noticed that the throttle cable didn't actually do much as the needle and plunger were stuck and fuel/oil spilled out of the hole in the bowl, it raced a bit then cut out. Ok, back to the website, more reading, decided to strip and clean carb, which was done using carb cleaner. Found the float needle was stuck, as was the float with nice brown goo. Put it all back together and tried it out, started on 3rd pull and ran fairly good, quite a lot of smoke, but responded to throttle! It's at this point that I noticed the head gasket leaking, oil dripping out of it. So after some umming and arring decied to take the head off and reseal gasket. I had read the words "Do not remove" and the stories on the site, but I had the bug now so went for it. It did strike me as odd having slotted bolts on the head would be fun if they were stuck but I laid the seagull down (after removing tank and carb) and filled the screw heads up with CRC 55 (its a bit like WD40) left them for a few hours. Returned and tried a screw, with little effort it undone a bit, so more CRC and moved onto the next ine, again, it came undone a bit so more CRC and onto the next, at this point I was thinking that I must be lucky!, the third one again came undone easily, more crc and then I came to the fourth one (located nearest the water outlet) no matter what it would not budge, by this time I had removed completley tthe other three. So gave it some heat and more CRC, tried again, this time it budged, or at least the slotted head didsheared off, unfortunately it took part of the head with it, now my point/question is, is the head ruined or can i use it with the bit broken off?
sorry picture is blurred! but hopefully you can see my problem?