Saving Old Seagulls

Hello Charlesp, The magneto flywheel reads the number JM 7340 The baseplate reads 2 numbers underneath where normaly the light coils are: 1120X1 and 1705 The gearbox has the Navy mark stamped. Does anyone has a picture of the locking lid for the tail? The crankshaft has two extra counterbalance weig...

Thanks for the responce gentleman,
Is there any number on the carb?

I started the restoration of the SD Seagull.
Just a picture.

Hello Seagull friends, I am restoring a SD type Seagull with the number SD.3822.L.3 I like to hear from other members what parts are non original. For sure the carburettor isn’t, this one is a Mikuni, I think the original must be an Amal. Can anyone post some detailed pictures of an original one, or...