I have heard of numerous DIY methods to detect those pesky vacuum leaks but it usually involves the use of a propane connected to a hose or carburetor spray cleaner aimed at suspected leak sites while the engine is running. Both of these methods can present a nasty fire hazzard when used around a ho…

Poor Man's Vacuum Leak Detector

circuitsmith January 19, 2011, 4:10pm 8

I think the 80’s Honda’s with feedback carburetors were even worse.
The CVCC system itself didn’t need extra vacuum lines.
Just a carburetor taken off the lawn mower from hell.