Is this usual?
- Thread starter funnelli
- Start date
Bolstie
New member
Question: How full are you filling the fuel/gas tank?
If you're filling it over the internal metal "guide" inside the tank, you are over-filling the tank, fuel is expanding before its used and flowing out the overflow. Least that would be my guess based on what has been stated.
Owner's manual recommends that tank be filled only to the bottom of the internal metal "guide" (Owner's Manual calls it a "filler tube"; see p 4-15).
If you're filling it over the internal metal "guide" inside the tank, you are over-filling the tank, fuel is expanding before its used and flowing out the overflow. Least that would be my guess based on what has been stated.
Owner's manual recommends that tank be filled only to the bottom of the internal metal "guide" (Owner's Manual calls it a "filler tube"; see p 4-15).
Thanks guys you have put my mind at rest, although I have never had a bike do this before!
I always overfill my tank... is this bad and should I stop?
funnelli
New member
I suppose as the excess petrol just sits in the well under the petrol cap until it vents through the hose it shouldn't be an issue although it's reasonably close to a hot exhaust?
I think this is exactly correct - the few drips of liquid that come from the end of the hose are re-condensed gasoline vapors. What's interesting is that if you rub a bit of it between your fingers and smell it, it has very little smell. Apparently the fraction of gasoline that our motorcycles are essentially distilling is not very volatile or aromatic.
I hadn't noticed this on previous bikes I've owned, but the FZ8/Fazer 8 warms the gas tank up a lot more than any of my previous bikes did. Also, on previous bikes it seems that these vapors were just vented through the gas cap, which you could hear whistle sometimes after parking. The FZ8 actually doesn't smell up my garage with gassy smells nearly as much as my previous bikes (DL1000 V-Strom, ZRX1100) did.
I suppose maybe you could get a little plastic bottle of some sort (something impervious to gasoline) and tape/zip-tie/whatever it to the end of the gasoline vent hose, to catch these little drips. It might have to be emptied occasionally, though. I was thinking something the size of those 5-Hour Energy drinks, preferably clear or translucent.
