I have a single cylinder w16 , or it’s a w12 , can’t really tell . Log book says w12.
Anyway after getting going the engine runs fine , lots of power but there is s squeak from it at induction pulse frequency . Every time the engine fires or rotates it squeaks and it is quite loud. It seems to be coming from thecarb area. I thought it may be the air tube between carb and cylinder as I can see it pulsing. Is it supposed to pulse or does that indicate it may have a tiny hole in it?
Any help appreciated.
I have another stick motor and may swop out the air guide connectors to see any difference