View Full Version : K7 Fuel leak-injector area
So I decided I wanted to take the SV out after not riding it since the oil change in July. Fired it up to warm while I put my gear on. I spotted a small patch appearing on the floor and smelt that it was petrol. Shut it off and had a look. From what I can see it seems to be coming from the front most part of the link pipe on the fuel injector rail. There are no leaks when the engine is off.
http://i250.photobucket.com/albums/gg268/kenzie2k3/731ff20f-d55f-4cf4-9bb8-4d2d2dc04219_zps1570f192.jpg (http://s250.photobucket.com/user/kenzie2k3/media/731ff20f-d55f-4cf4-9bb8-4d2d2dc04219_zps1570f192.jpg.html)
I spoke to Orwells who said it should just be a case of replacing the pipe. The mechanic suggested trying a jubilee clip in case it has just come loose to nip it up a bit. I assume I will need to remove the injectors to replace it, but will this mean a new seal kit? Any advice on the best repair for this?
stick the tank on and have a look when bike is running.
I checked it with the tank on before stripping it down. Only place I can see it could have come from.
could have?... was this without the airbox on?
In the pic there is a braided cable going through the frame below the pipe. The drip of fuel was hanging off that frame but on the nearside, as if it had run along the rail past the brown connector and down the frame,then dripped between the cylinders and down the case. It was on it's stand at the time. By the time I got it stripped down the fuel had evaporated.
this is why i'm saying run the bike again with the tank back on. this will show you where its coming from. if you make sure that everything is dry and then dust with talcum powder it will show you where the leak is from.
you might even get away with just priming the system rather than running the bike.
Thanks, I will be looking at this later in the week as the bike isn't to hand. Can the hose be replaced easy enough or is it going the be a throttle body strip down?
hose is easy enough if you have nail pulling pliers to cut the old rings off.
Might have to buy some. If I cut this hose off will there be much spillage or will the system not flow if the pump isn't running? Also, how do I prime it after?
Are these what you mean?
http://www.ebay.co.uk/itm/6-PINCER-PLIERS-DIY-EXPERT-CARPENTERS-CUTTING-CUTTER-TOOL-150MM-NAIL-EXTRACTOR-/251218774557?pt=UK_Baby_BabyFeedingUtensils_EH&hash=item3a7dce4a1d
yes those are the ones.
make sure the tank is removed. there will be a small amount of petrol (what ever is in the system). no it should self prime.
It's going to be the weekend now before I look at this. When you say tank removed, do you mean propped up and connected or fully off the bike? Can access it all propped up.
yes you can access it propped up but its best to take it off when doing any work as it gives more access and light. once you get used to taking the tank off its easy, first cppl tries are a bit of a pain. only takes a few extra mins.
Will have to take a look. Looking in the haynes manual it looks like the pipe covers about 1cm or so of the rail. I doubt I can get the hose off without removing the injectors. Would you advise new o-rings if I need to remove?
yes with a little RRG/silicone
Well I took your advise and reassembled the bike before I started pulling stuff to bits. And I found......nothing. Not a drip or spray or smell. I will keep an eye on it and see what happens.
ok another question. was the tank full of petrol and the weather hot?
I would say half full and around 18-20c. Bike hadn't been ridden in two months.
cant be the overflow then. i know mine pizzes out when its brimmed and the weather is hot.
did you have the tank off when you done the oil change in July?
No. Nothing looked out of place earlier either. I had it warming up while putting me gear on, took it for a ride then parked up with it running. Dry as a bone. Might check the coolant as well when I'm there next.
Because of the intermittent nature of this leak I have been lucky so far. But now it's back again. Can I bend the new hose into place and jubilee clip it? Also will I need to bleed anything or will it sort itself out?
as long as the hose is the right type then yes just cut the old clips off then put new hose and clips in. the hose might have perished inside under the clips but i doubt it.
no need to bleed anything it is self priming.
i would still suggest that you make sure its that hose rather than somewhere else as i have never heard of a link hose leaking. those clips are damned tight.
is your bike kept outside?
No, in a garage. The only point I can see fuel coming out is the front most part of that pipe.
i'm not a huge fan of jubilee clips as you cant get them tight enough unless you get good quality fuel hose ones. normally there is a bit of excess on the crimp that you can nip up but it looks like they are well tight. you could try nipping it up with a pair of nail pullers by giving it a bit of a twist.
its strange how its intermittent as usually once something like that starts leaking it keeps leaking.
Its something I need to sort. I went to use it last weekend and couldn't. It seems to just well up from the forward end. If I went back to it the next day it would be fine. Almost as if the fuel had caused it to expand again.
6 months ago I had exactly the same problem with my K6 and under the same circumstances. I also removed everything but couldnt find any problem although I did fiddle with the link pipe. Put it back together and its never leaked again!
Kenzie please let us know if you do find anything definite.....
Dropping the SV off at my local Suzuki dealer. I don't really have the time or confidence to sort this out. Want to be able to go to the bike and ride it, not worry if my day is going to be ruined by a fuel leak. Plus its been three years since the problem appeared and its about time it got sorted!
Had same problem on my k3, front of link hose spraying out.
Gave it a twist and a nip with pliers.......fixed.
Got a text from Orwells, bike is done. Gave them a call and the fuel hose clips wern't very tight and they have replaced them and road tested. 30 mins labour charge. Can't pick up until next weekend though.
vBulletin® , Copyright ©2000-2025, Jelsoft Enterprises Ltd.