Hi all. I know you have had previous threads on this subject, but none covers this particular problem! I have a 54 panhead, 1200 customised. as stated, it has lost compression on the front cylinder. When i move the kick start I get a whoosh from the front oil breather hole, just below the front exhaust valve spring. Compression checked at front 35 dry, 60 wet, rear 60 dry, 80 wet, with no carb fitted. Have put a smoke detector on it, with no obvious leak. Any ideas? Rings maybe?