JACook":e3oja45a said:The propane enrichment can be done without any special tools, but I will say the tool makes things
a little easier. All you need is a way to repeatably supply a low flow of propane. When I first started
using the propane enrichment method, I modified a regular propane torch by removing the torch bit,
and attaching a hose.
I have altered the factory method just a bit though. Rather than inject the propane into the air cleaner,
I prefer to aim the hose down each individual throat, to make sure I'm getting the same reaction from
all of them. Then I work with progressively lower propane flow rates to fine tune the mixture setting,
while watching both engine RPM and manifold vacuum.
It takes a bit of practice to find the balance, but once you know what feels right, it's much quicker and
more accurate than just using the vacuum gauge.