No more whistling gas cap....POOG eliminated
Like so many here, my ‘06 really suffered with POOG (Phantom Out Of Gas) issues. With each tank of gas, once it was down to 1/4 remaining (approx 90 miles), I would feel the bike bog down as if it was running out of fuel. Like you, I’d pull over, open the gas cap letting some air in the tank and then proceed on my way. At the very least it was a PITA....of course safety was a concern too. Additionally, there are many threads about the gas cap whistling.
If you have ever taken the gas cap apart, you know it’s a complicated bit of engineering.....in addition to the lock, it has screws, springs, gaskets, valves, machined channels....all designed to keep the gas in and let the tank breathe. Problem is, the tank can’t breathe because (IMHO) the damn thing is over engineered.....and the whistling you hear is the tank TRYING to suck air in through the two valves.
I finally eliminated the problem by removing the small valves and gaskets (pictured) and replacing them with a small piece of air filter sponge (the kind of filter used to replace a lawn mower air filter). After several tanks, the gas cap no longer whistles and I have not experienced the dreaded POOG issue.
Note: if you decide to take the gas cap apart, be careful....some of the parts are very small and easily lost. Good luck!!
Last edited by VoIPDoc; 05-30-2013 at 09:20 PM.