Checking for cracks

[Old standup rider]

Anybody have any tips to check for cracks on cases, cylinders and exhaust pipes? I’m getting water in the bottom of my crank case!!

 

[DylanS]

Anybody have any tips to check for cracks on cases, cylinders and exhaust pipes? I’m getting water in the bottom of my crank case!!

Leak down test is your best bet, but I’d check exhaust manifold gasket first.
Lay down pipe?