Fuel smell - CBR Forum - Enthusiast forums for Honda CBR Owners

CBR 1000F "Hurricane" 1987-1996 CBR 1000F

Thread Tools Search this Thread
Old 12-26-2012, 09:28 PM
Junior Member
Thread Starter
Join Date: Jun 2012
Posts: 10
Default Fuel smell

hi all i have a 94 cbr1000f and i get a real bad fuel smell after going for a ride when i switch the engine off , any leads would be aprecated , thanks cliff
Reply With Quote
Old 12-29-2012, 05:04 AM
HenryM's Avatar
Senior Member & tensioner mod inventor ROTM WINNER FEB 2013
Join Date: Sep 2009
Location: Kent, UK
Posts: 1,298

Hi Koalaboy,
I'm going to assume you're in Oz, not that it matters but always nice to know where everyone is.
Think of the fuel system as being one continuous tube which runs between the fuel filler on the tank to the jest in the carbs. At any point between either end there is potential for fuel to escape. Even a minute weep will cause a smell.
So to find the leak, start at the top (the tank) and work your way down the tube to the carbs. Check the seal around the filler cap isn't damaged for starters. Check that the tank breather isn't blocked.
I've had a few problems with petrol leaks on both my canes, firstly starting with the tank its self and then on the second bike, the fuel tap had an internal leak through the seals around the valve shaft resulting in petrol leaking out through the tap body. It took me quite a while to suss that one out and the only cure was to replace the whole tap. Replacing the diaphragm made no difference.
Take off the tank and check there's nothing weeping from under the front mounting point. If you detect a petrol leak around this area of the tank you're probably going to have to change the tank. Trying to seal it from the inside is hit and miss and even if you do seal it the chances are that it'll start leaking again as there is a lot of flex between the tank and the bracket when the bike's in motion.
You may be lucky, it could just be a rubber hose further down from the petcock.
Its a process of elimination. Hopefully it'll be pretty obvious.
Good luck.
Reply With Quote
Old 12-30-2012, 07:06 AM
tobiahr's Avatar
Senior Member
Join Date: Aug 2008
Location: Austin, TX
Posts: 240

An easy way to locate even a small leak that may only be present when the bike is warm and have evaporated by the time you get it disassembled enough to find it is by using baby powder. Put some in a turkey baster to get in tight spots and powder the carb area being careful not to put any in the airbox or intake. The powder will stick to any wet surface and will absorb the fuel staining it to a yellow or light tan. When disassembling the bike you should be able to spot the leak easier.
Reply With Quote
Old 12-30-2012, 08:13 AM
HenryM's Avatar
Senior Member & tensioner mod inventor ROTM WINNER FEB 2013
Join Date: Sep 2009
Location: Kent, UK
Posts: 1,298

Brilliant idea Tobiahr! Premier league trouble shooting tip.
Amazing what else you can use a Turkey baster for.
Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Does your F3 smell of fuel? Contro13R CBR 600F3 16 10-31-2014 12:26 PM
Fuel smell Paradroid CBR 600F4 3 05-06-2013 04:52 PM
why does my oil smell like fuel?? dacamman86 General Tech 7 05-06-2012 11:28 PM
Flooded 96 SJR. Strong fuel smell in oil. tc_rogers CBR 600F3 4 04-19-2012 10:44 AM
Strong fuel smell crhallcbr F4i - Main Forum 1 11-15-2007 12:20 PM

1000, 1000f, 2012, cap, cbr, cbr1000f, fix, fuel, gas, hurricane, leaking, smell

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Featured Sponsors
Vendor Directory

All times are GMT -5. The time now is 04:03 AM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.