GSX1400 Owners .org

Technically Speaking => General Technical discussion => Topic started by: David Nolan on Sunday, 02 April 2017, 05:30 AM

Title: Pull back
Post by: David Nolan on Sunday, 02 April 2017, 05:30 AM
First day out on the gsx in the complete dry...

Just a quick question..   The run was a very spirited run shall we say..

When going flat out in a few Gears it seemed if the.bike was pulling back in high revs like a fuel cut or limiter?
Title: Re: Pull back
Post by: seth on Sunday, 02 April 2017, 05:34 AM
was it the past red line
as the 14 does have a rev limiter not sure where it's set at but is above 9000 rpm
:popcorn:
Title: Re: Pull back
Post by: David Nolan on Sunday, 02 April 2017, 05:35 AM
No seth not past rev line but defo high up in revs
Title: Re: Pull back
Post by: seth on Sunday, 02 April 2017, 05:47 AM
was it in all gears or just in the highest you got in to ?
have you checked your fuel pump fitlers ?

if you can give as much info as possible folk may be able to give you idea's on what to check.

sound fuel starvation from what you have said so far.
:cheers:
Title: Re: Pull back
Post by: David Nolan on Sunday, 02 April 2017, 05:50 AM
I agree with what you think..  Fuel starvation..

What would be cause of that..
Really online noticed it in possible 3Rd 4th and 5th
Title: Re: Pull back
Post by: seth on Sunday, 02 April 2017, 05:55 AM
i just had problems with fuel pump filter and had my injectors cleaned made a massive  difference. (company listed in the srvices section cost £57 for all 4)
has the bike been standing for a while ?
you could try running some red X throught your fuel system via adding to your fuel.
as a first step .
Title: Re: Pull back
Post by: David Nolan on Sunday, 02 April 2017, 06:01 AM
Thanks lad
Title: Re: Pull back
Post by: gsxbarmy on Sunday, 02 April 2017, 07:46 AM
Or rather than Injector cleaner, run a couple of tankfuls of super unleaded instead
Title: Re: Pull back
Post by: T 24 on Sunday, 02 April 2017, 02:54 PM
I have used this additive couple of times in a year: RED LINE SI-1 Fuel System Cleaner.
And it seems to work.
Title: Re: Pull back
Post by: RickC on Sunday, 02 April 2017, 09:36 PM
Agree with everyone, my bike behaved the same above 6000 turned out to be one fouled injector.
Title: Re: Pull back
Post by: David Nolan on Monday, 10 April 2017, 05:20 AM
Had the bike out today for 250mile round trip.
Added a fuel cleaner doesn't seem to have sorted the problem issue comes into play above 6500rpm..
Title: Re: Pull back
Post by: seth on Monday, 10 April 2017, 05:26 AM
id try stripping and cleaning the filters on the fuel pump
if you need a replacement low-pressure (ree-bag) filter give me a shout and I'll send you one.
tho mine cleaned really well with halfords carb cleaner .

:cheers:
Title: Re: Pull back
Post by: David Nolan on Monday, 10 April 2017, 06:27 AM
Quote from: seth on Monday, 10 April  2017, 05:26 AM
id try stripping and cleaning the filters on the fuel pump
if you need a replacement low-pressure (ree-bag) filter give me a shout and I'll send you one.
tho mine cleaned really well with halfords carb cleaner .

:cheers:



Cheers thanks will have a look through the week
Title: Re: Pull back
Post by: David Nolan on Wednesday, 12 April 2017, 02:13 AM
Guys I took out fuel pump today it was absolutely horrible what gunk was in it..  Cleaned it all up reinstalled and problem solved..  Bike is crisper on Throttle and no more pull back higj up in revs
Title: Re: Pull back
Post by: seth on Wednesday, 12 April 2017, 02:22 AM
I've put in a in-line filter between the tank and the fuel pump pick-up
its all low pressures (gravity feed)
will stop the same thing happening again or at least stop it getting as far as the fuel pump filter
glad you found the problem and its running great again

:cheers:
Title: Re: Pull back
Post by: DanGSX on Wednesday, 12 April 2017, 04:40 AM
Interesting read. Glad you got it fixed mate.

On the subject of crap in the fuel pump - Do you think this could have been avoided by running super unleaded quite regularly? Just wondering.
Title: Re: Pull back
Post by: seth on Wednesday, 12 April 2017, 05:00 AM
i run super unleaded every 4th tank or so with red x in between.
it wouldn't help with this problem tho .
thats why i fitted a inline filter before the fuel pump to stop any crap reaching the pump it's self  :cheers:
Title: Re: Pull back
Post by: David Nolan on Wednesday, 12 April 2017, 07:50 PM
Not sure bout the super unleaded...  The bike I purchased seemed to have being standing in a shed for a while..
The gunk was a rusty colour.  Possibly corrison on inside of the tank? 
Title: Re: Pull back
Post by: David Nolan on Wednesday, 12 April 2017, 07:54 PM
(https://gsx1400owners.org/forum/proxy.php?request=http%3A%2F%2Fi119.photobucket.com%2Falbums%2Fo126%2Fglanza300%2FMobile%2520Uploads%2FDSC_1427_zpscwzws8jr.jpg&hash=4560bb1aa795fd58604b4e3cdc8bca6b2ad1a93a) (http://s119.photobucket.com/user/glanza300/media/Mobile%20Uploads/DSC_1427_zpscwzws8jr.jpg.html)



Here is pic of inside the housing where the fuel pump sits.. Also the filter  was in a horrendous state with all the rusty looking crap
Title: Re: Pull back
Post by: grog on Wednesday, 12 April 2017, 08:47 PM
mate, youve only sorted half the problem. your high pressure filter will still be blocked. read on here how to by pass and fit external filter. best thing youll ever do.
Title: Re: Pull back
Post by: seth on Wednesday, 12 April 2017, 09:37 PM
i don't think it needs a bypass of the high pressure filter if he cleaned the low pressure side and adds a inline low pressure side it should be fine .
i would wash/clean the high pressure side with plenty of carb cleaner.
Title: Re: Pull back
Post by: David Nolan on Wednesday, 12 April 2017, 11:03 PM
Quote from: grog on Wednesday, 12 April  2017, 08:47 PM
mate, youve only sorted half the problem. your high pressure filter will still be blocked. read on here how to by pass and fit external filter. best thing youll ever do.


Where is the high-pressure filter located?? 
Title: Re: Pull back
Post by: seth on Wednesday, 12 April 2017, 11:05 PM
its inside the big black part of the fuel pump
its sealed so you can't remove the actual filter .
but you'll see the fuel outlet just use loads of carb cleaner to wash it out .
things should be ok after that if your tank looks like its not in the best condition internally give it a wash out with petrol and then fit a inline filter between the tank and fuel pump.

good luck