Keeping unwanted gas fumes at bay
The Evaporative Emission Control System (EVAP) is used to prevent gasoline vapors from escaping into the atmosphere from the fuel tank and fuel system. The EVAP system usually requires no maintenance.
All I really cared about was not filling my garage with fumes, Unfortunately adapting the IQ EVAP was not possible so I installed one from a FZR/R1 motorcycle that was rated for the 1000cc engine.
Here is how I did it...
Removing the IQ EVAP
The IQ canister was a bout twice the size of the new FZR/R1 one, removing it was pretty straightforward, lots of pipes and connectors coming from the old fuel tank, but it came away OK, interestingly it was actually quite heavy for its size.
Half the size half the weight
The new FZR/R1 canister was a lot smaller, it also had less connections, basically one in two out.
The same only less
The charcoal canister was bolted to the underside of the IQ pretty to close where the old one was. The vent lines from the fuel cell and Fuel pump canister join together and go into one end of the can. The motorcycle version is much simpler than a car one, the remaining vent lines go up behind the filler cap and connect to a bracket and a small filter.
No more fumes
Installing this canister made a huge improvement, no more gas smell in my garage, somehow the charcoal inside the EVAP takes away the harmful vapors and just does what I wanted it to do. I was told this is only installed on FZR and R1 motorcycles that are sold in California, I guess the emission laws there are a little more strict.
As mentioned on another page I used good quality Braided Stainless PTFE hoses, that do not permeate gas, so my system is now sealed and legal. If you plan to buy the cheaper ones they will eventually break down.
EVAP system is completed, this finalizes the installation of the fuel delivery system