Fuel smell

Got a technical query? Found another 0.02bhp? Ask/tell the world.

Moderators: Paul, slparry, Gromit

User avatar Great Britain
sjrainsford
Posts: 55
Joined: Sun Sep 24, 2017 11:44 am
Location: Lichfield

Fuel smell

Postby sjrainsford » Tue Mar 13, 2018 11:03 am

Hi all!

I keep my R1100S in my garage which is attached to the house. There's a cat flap from the kitchen into the garage. I've noticed that the bike smells of fuel quite a lot after use, and more so when the tank is more full. It can last for days. The problem being, this smell navigates it's way into the house.
As you are all aware it's Mick's old bike with only 15k on the clock. Are there any common failure points, or does the ventilation need modification? Just hate the way the smell lingers. My vespa will smell after use for a couple of hours, but won't if I leave it out for a few hours before bringing it into the garage. Plus my old suzuki was the same. Whilst leaving it outside for a while helps with the R1100S, it doesn't completely get rid of the smell. I'm guessing they don't have a carbon canister as required on newer bikes.
2001 BMW R1100S (Merecat)
2008 Vespa GTS300 (Bianca)

Australia
Mitch1100
Member
Posts: 776
Joined: Tue Apr 23, 2013 9:00 am
Location: Tasmania

Re: Fuel smell

Postby Mitch1100 » Sat Mar 17, 2018 12:32 am

Spray powder deodorant and then fill the tank..may reveal exit point of the fluid. Could be large O ring on access to fuel pump??
2009 HP2 Sport
2006 R1200s with yellow rim tape
2008 Ducati Monster S4RS Tricolore..sold
2004 R1100s BoxerCup Replika..sold
2006 Subaru WRX STI S204 #318/600

User avatar Australia
Hay Ewe^
Posts: 141
Joined: Sat Aug 27, 2016 9:59 pm
Location: Far North Queensland - AUS

Re: Fuel smell

Postby Hay Ewe^ » Sat Mar 17, 2018 9:22 am

I would check that the breather hoses are free and not blocked.

I dont know / cant put in to words how this may help so maybe I am barking up the wrong tree.
Cant hurt though

User avatar Ireland
nab 301
Member
Posts: 2143
Joined: Sat Dec 04, 2004 6:41 pm
Location: Dublin Ireland

Re: Fuel smell

Postby nab 301 » Sat Mar 17, 2018 9:18 pm

sjrainsford wrote:Hi all!

As you are all aware it's Mick's old bike with only 15k on the clock. Are there any common failure points, or does the ventilation need modification? Just hate the way the smell lingers. .


I bought my 11s years ago with similar mileage and discovered that the o ring that seals the petrol filler cap assy was leaking . When I eventually removed it I noticed that the o ring had been pinched incorrectly on assembly .
See if you can locate where the vapour is coming from, whether from the breather pipe ( exits near the swing arm on the R/h side) or somewhere else higher up .( might involve crawling around on your hands and knees..)
_________________
Nigel

Keep smiling, it makes people wonder what you've been up to!
1999 R1100s (mandarin) '
'05 CBF250
'04 Breva 750
'98 NT650 Deauville (El Presidente)
MZ301 Saxon Fun ( currently retired)
'03 Bullet 65 project..

Great Britain
boxerscott
Posts: 2948
Joined: Sat Apr 21, 2007 5:07 pm
Location: scottish borders
Contact:

Re: Fuel smell

Postby boxerscott » Sat Mar 17, 2018 10:31 pm

If fuel vapours can exit... then moisture can enter, do not go out in the rain. Check the main filler cap 0 ring seal on to the fuel tank.

jus sayin!

Chris
Back in the Ring

User avatar Great Britain
sjrainsford
Posts: 55
Joined: Sun Sep 24, 2017 11:44 am
Location: Lichfield

Re: Fuel smell

Postby sjrainsford » Mon Mar 19, 2018 3:35 pm

I've found the source of the smell, and to be honest I'm a bit of a numpty! :oops:

It was just the filler cap that wasn't shut properly. I've never done that before. Never noticed till I'd got the side panels off to investigate. :roll:
Still, it gave me chance to tape up a few more cables that are cracking. Need to remove the tank and do a proper job of it really. They're rubbish in my opinion!

And I'm actually an engineer! :lol:
2001 BMW R1100S (Merecat)
2008 Vespa GTS300 (Bianca)

User avatar Australia
Hay Ewe^
Posts: 141
Joined: Sat Aug 27, 2016 9:59 pm
Location: Far North Queensland - AUS

Re: Fuel smell

Postby Hay Ewe^ » Tue Mar 20, 2018 9:00 pm

I think the youngest 1100S will be 14 years old now, the covering around the wires wont last for ever.
I recovered ALL my 1150GS wiring in 2012, 10 years old at the time as most of it had broken up - but I live in teh tropics and most rubber products dont last in this environment

User avatar Great Britain
The Teutonic Tangerine
Posts: 1538
Joined: Mon Jan 28, 2008 3:18 pm
Location: Essex
Contact:

Re: Fuel smell

Postby The Teutonic Tangerine » Wed Mar 21, 2018 4:03 pm

Hay Ewe^ wrote:but I live in teh tropics and most rubber products dont last in this environment


How many kids have you got :)
There would appear to be a surfeit of prolixity and sesquipedalian content today please do not use a big word when a singularly un-loquacious and diminutive linguistic expression will satisfactorily accomplish the contemporary necessity

User avatar Great Britain
sjrainsford
Posts: 55
Joined: Sun Sep 24, 2017 11:44 am
Location: Lichfield

Re: Fuel smell

Postby sjrainsford » Thu Mar 22, 2018 8:55 am

The Teutonic Tangerine wrote:
Hay Ewe^ wrote:but I live in teh tropics and most rubber products dont last in this environment


How many kids have you got :)


:lol: :bounce:
2001 BMW R1100S (Merecat)
2008 Vespa GTS300 (Bianca)

User avatar Australia
Hay Ewe^
Posts: 141
Joined: Sat Aug 27, 2016 9:59 pm
Location: Far North Queensland - AUS

Re: Fuel smell

Postby Hay Ewe^ » Thu Mar 22, 2018 9:16 pm

The Teutonic Tangerine wrote:
Hay Ewe^ wrote:but I live in teh tropics and most rubber products dont last in this environment


How many kids have you got :)


thats funny, laugh I did

Lets say that a canisterectomy was carried out :lol:


Return to “Boxertech”

Who is online

Users browsing this forum: No registered users and 6 guests