Fuel leak

Message

Aladinsaneuk · #1 Post by **Aladinsaneuk** » Thu Aug 09, 2007 9:21 pm

I will cross post this to other places as well - I think i may need a few pointers

took the bike out for a blast on tuesday - nothing special, just 100 mile thrash around

Parked the bike in the shed, and went back to it today, thursday.

Opened up the shed and could smell petrol....

I saw a small pool of fluid - petrol around the side stand. Moved the bike out on to the drive and popped it on the side stand - started the bike and noted that there was more fuel coming out than previously.

hmmm - bugger I thought

went for a quick blast - ie to get more fuel - I notoiced that there was a minimal or no leak when the bike was bolt up right - but as soon as it went on the side stand - more leak - and definitly worse with the engine running

so - any thoughts before i start stripping things down?

(Am hoping it is just a loose hose but... I doubt it some how!)

#2 Post by **Kwackerz** » Thu Aug 09, 2007 9:26 pm

Loose or split pipe by the sounds of it.

Gets worse when running?

Dont.. basically. If fuel drops on a hot rear header, you'll end up with the slowest and hottest Falco in UK

Time to lift the tank then...

Gio · #3 Post by **Gio** » Thu Aug 09, 2007 9:33 pm

Could it be a failed gasket?

D-Rider · #4 Post by **D-Rider** » Thu Aug 09, 2007 9:51 pm

I've replied where you cross posted ..... there is a lot of info on this over there on fuel leaks

HERE

Falcopops · #5 Post by **Falcopops** » Fri Aug 10, 2007 10:17 am

Check the quick release coupling on the return line 1st you should be able to see it on the left side between the tank and the frame rails. Push the button in and pull apart then reconnect and try for leaks.

Then it's look for the dodgy joint/split hose.

I've heard of badly seated fuel pumps causing a leak, but I would have thought it unlikely to make any difference between engine running and not as the tank doesn't get pressurised.

Good Luck

Aladinsaneuk · #6 Post by **Aladinsaneuk** » Fri Aug 10, 2007 1:46 pm

thanks chaps

I did have a quick scoot through the assorted web posts, but none had the same symptoms - ie worse with engine running - hence why i posted a new one

will wander out this afternoon and have a look....

must remember to leave the pipe inside though :)

HisNibbs · #7 Post by **HisNibbs** » Fri Aug 10, 2007 3:48 pm

Respec' Falcopops.....

I had the quick release union (on the left under the tank) come loose because of getting nudged while checking the clearances.

'cause the fuel pump is on with the engine running, it was a lot worse then .......

Aladinsaneuk · #8 Post by **Aladinsaneuk** » Fri Aug 10, 2007 3:57 pm

well - is warped :(

reason why it was worse with engine running - vibration I assume

I am not sure of next option, but I fear it may result in a new tank....

I will probably try to get it fixed, but not really sure how (as in what is capable by me.... I know my limits!)

Am almost tempted to fix the pump in place permanently while I look for a second hand tank and pump.....

Doesn't anyone make a silicone style gasket that doesn't get eaten by petrol???

D-Rider · #9 Post by **D-Rider** » Fri Aug 10, 2007 4:03 pm

Pete - did you see the first of my links over on AF1 - Taqman has exactly this problem and made a fix for it. Sure, if you can get a cheap tank it may be the easiest solution (but not if it's Yellow of course) - but it may be hard to come by. I'd read up on that repair.

Is the problem worse as soon as the engine runs - if not it could be due to the heat these engines give off causing the distortion to vary with temperature.

Aladinsaneuk · #10 Post by **Aladinsaneuk** » Fri Aug 10, 2007 10:24 pm

is as soon as the engine runs :(

and, just to really take the piss, I sold my spare cbr600 two days ago to make space for another project, so am currently bikeless...

I may be forced to sit at home and think hard on the olsen twins now....

D-Rider · #11 Post by **D-Rider** » Fri Aug 10, 2007 11:01 pm

Aladinsaneuk wrote:is as soon as the engine runs :(

and, just to really take the piss, I sold my spare cbr600 two days ago to make space for another project, so am currently bikeless...

I may be forced to sit at home and think hard on the olsen twins now....

Damn .... and double damn re the cbr !

.... but who on earth are the olsen twins??

Samray · #12 Post by **Samray** » Fri Aug 10, 2007 11:07 pm

Olsen twins

D-Rider · #13 Post by **D-Rider** » Sat Aug 11, 2007 10:12 am

Well I still don't know who they are but I suddenly developed a keen interest in collecting butterflies!

Gio · #14 Post by **Gio** » Sat Aug 11, 2007 9:14 pm

D-Rider wrote: but who on earth are the olsen twins??

A pair of Yank scrubbers

Aladinsaneuk · #15 Post by **Aladinsaneuk** » Sat Aug 11, 2007 9:17 pm

they can scrub all sorts off me

or, i can scrub them with uncle alad's patented scrubbing tool if they so desire....