I built my own leak tester thanks to some pictures on here so I could test the engine in this sled I just got. It showed symptoms of an air leak...it would bog down when I hit the gas and didn't want to idle. Also, I made a carb synch tool, and no matter how much I adjusted the idle, the right carb was always drawing more air.
Once I hooked up the leak tester, I thought I was losing my mind because it wouldn't build any pressure. I made sure beforehand that my tester was airtight, (which it was). Sure enough, my left crank seal was so worn out that the engine couldn't even build any pressure!! I'm ordering a whole gasket set soon so I can remedy the problem. I'll put pictures of my setup on here tomorrow if anybody is curious.
Once I hooked up the leak tester, I thought I was losing my mind because it wouldn't build any pressure. I made sure beforehand that my tester was airtight, (which it was). Sure enough, my left crank seal was so worn out that the engine couldn't even build any pressure!! I'm ordering a whole gasket set soon so I can remedy the problem. I'll put pictures of my setup on here tomorrow if anybody is curious.