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General Category >> Rubber Side Down! >> Whiff this.....
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Message started by raydawg on 10/09/12 at 03:28:45

Title: Whiff this.....
Post by raydawg on 10/09/12 at 03:28:45

On occasions, while at idle, etc, I can get a whiff of petrol while mounted, could it be my fuel cap vent? Its not very strong, very subtle, but I did a looky round to nothing. As to the vent, the tank is not vented with its own dedicated line, right, just the cap itself?

Title: Re: Whiff this.....
Post by ToesNose on 10/09/12 at 03:56:03

I'd be dissapointed if I didn't get the occasional wiff of gas while on my LS650 ;)

Title: Re: Whiff this.....
Post by Routy on 10/09/12 at 05:46:57

The cap vents in as the gas is going out. It will also vent out if the tank ever becomes pressurized,......not likely while riding.
I'd look for a gas leak.

Title: Re: Whiff this.....
Post by Oldfeller on 10/09/12 at 06:02:52

4C5F475A5F49593E0 wrote:

Is this the one that fits?

http://www.cheapcycleparts.com/1?utf8=%E2%9C%93&q=+5LP-24500-01-00&x=21&y=9&p_st=Search

Do you know if I install this now while my bike is under warranty, it might void it possibly if, heaven forbid, I have a major issue with it?

I do suspect some fuel issues already, at 900 miles, I've had it poop out (dying) while slowing to a stop, and it seems I need to keep it top off, for the most part, as I've ran out once and had to swith to reserve while under way, but I'm use to a trip odometer to warn me where my fuel use it at :P

And now you are sniffing gas smells .... are they coming from your air box?

You and Colorado Girl both have new bikes with budding vac petcock issues which started before 1,000 miles was out. Doesn't say very much for the quality of the parts being put together in those not-built-in-Japan-any-more bikes, now doesn't it?

In any case, you are under warranty. Take the bike in to the stealership you bought it from (and let them pick your pocket for $60 several times without fixing anything) then do what you gotta to do to fix your real issue.

That will take 2 hours and $16 of your hard earned money and you already know what it is and where to buy it ....

http://www.ebay.com/itm/Suzuki-LTZ-400-LTZ400-Fuel-Gas-Petcock-Valve-Switch-Pump-ATV-Quad-Four-Wheeler-/221043795497?pt=Motors_ATV_Parts_Accessories&hash=item33773ca629&vxp=mtr

Title: Re: Whiff this.....
Post by Charon on 10/09/12 at 06:08:33

At a stop with the engine idling, engine heat might rise and warm the tank, or sunshine might do the same. Either will cause the tank to vent air and gas vapor through the gas cap. California bikes have a dedicated vent line running to a charcoal cannister.

I long ago got into the habit of filling the tank on my bike at the last gas station on the way home, so they always sit with full fuel and are ready to ride. When I stop at home and leave the bike on the driveway for a bit, it is very usual for the tank to make a singing or whistling noise as engine heat and/or sunshine warm it. I think that noise comes from the vented fuel cap.

Title: Re: Whiff this.....
Post by Routy on 10/09/12 at 06:47:07

The cap vents in as the gas is going out. It will also vent out if the tank ever becomes pressurized,......not likely while riding.
I'd look for a gas leak.