zx7r help....bike running like a bag of shit---FIXED
Moderator: Moderators
-
- zxr400 oc member
- Posts: 613
- Joined: Sun Oct 21, 2007 12:24 pm
- My Bike: zx7r p6
- Location: Stafford
zx7r help....bike running like a bag of shit---FIXED
hi guys, 2 days ago the bike started running like an utter bag of toad, below 5k its missing and has no power at all but above 5k it pulls like a train. oddly, it started running toad the day after i removed the baffle from the end can(this has now been replaced but hasnt helped)
im 99% sure its fuelling so was wondering if anyone had any bright ideas....the carbs are off at the mo and ive removed the float bowls and cleaned them up plus ive blasted carb cleaner up all the jets in the vain hope that it will sort it. i have also removed the end caps and checked the diaphrams and they are good.
does anyone have any bright suggestions?
cheers muchly
mike
im 99% sure its fuelling so was wondering if anyone had any bright ideas....the carbs are off at the mo and ive removed the float bowls and cleaned them up plus ive blasted carb cleaner up all the jets in the vain hope that it will sort it. i have also removed the end caps and checked the diaphrams and they are good.
does anyone have any bright suggestions?
cheers muchly
mike
Last edited by rover220 on Tue Apr 06, 2010 6:02 pm, edited 1 time in total.
- RedexRobB
- Site Admin
- Posts: 7212
- Joined: Fri Aug 30, 2002 7:37 pm
- My Bike: ZXR400L3
- Location: Ipswich, Suffolk
Re: zx7r help....bike running like a bag of toad
I think Diesel had this same problem with his 7, might be worth dropping him a mail and see what he says?
- Jamz
- zxr400 oc member
- Posts: 2034
- Joined: Tue Sep 17, 2002 4:21 pm
- My Bike: Kawasaki ZX9-R C2
- Location: Alvechurch, Near Birmingham
- Contact:
Re: zx7r help....bike running like a bag of toad
If the induction is similar to the 9's it might be worth having a look at all the air pipes under the tank and making sure none of those has come off...
- Mori Man
- Blingmeister
- Posts: 1976
- Joined: Thu May 10, 2007 3:30 pm
- My Bike: ZXR400J2
- Location: JAPAN
Re: zx7r help....bike running like a bag of toad
Pulling the baffle / db killer should just make it run rich which wouldn't affect it in that way.
Sounds like your reg/rectifier is on it's way out - you need a Yosh' meter to monitor it
Cleaning the carb's might cure but feel it's something else.Check vacuum hoses too.
MM!
Sounds like your reg/rectifier is on it's way out - you need a Yosh' meter to monitor it
Cleaning the carb's might cure but feel it's something else.Check vacuum hoses too.
MM!
Nothing worse than having an H and not being able to scratch it !
Living life on the edge, SuPposedly
Living life on the edge, SuPposedly
- BrianZXR
- Posts: 94
- Joined: Sun Feb 07, 2010 4:25 pm
- My Bike: zxr400h2
- Location: STOCKPORT
Re: zx7r help....bike running like a bag of toad
had a zx7 before this 400 and i had similar problem , turned out one of the vacum pipes had worked loose under the tank , they dont have any form of clip on them and rely on good faith and the way they sit to keep them on ,worth alook
-
- zxr400 oc member
- Posts: 613
- Joined: Sun Oct 21, 2007 12:24 pm
- My Bike: zx7r p6
- Location: Stafford
Re: zx7r help....bike running like a bag of toad
well it seems its deffo fuelling, underfuelling to be precise......got the carbs back on after a sort of strip clean but its no better......its backfiring like a goodun so has got to be underfuelling......need to strip them down properly and remove the needles it would seem!!!
ayone have any further thoughts?
ayone have any further thoughts?
-
- zxr400 oc member
- Posts: 613
- Joined: Sun Oct 21, 2007 12:24 pm
- My Bike: zx7r p6
- Location: Stafford
Re: zx7r help....bike running like a bag of toad
would a split diaphragm in the carbs cause these problems?
- extonyg
- zxr400 oc member
- Posts: 405
- Joined: Tue May 12, 2009 9:40 pm
- My Bike: zxr 400 L1 uk
- Location: Portsmouth
Re: zx7r help....bike running like a bag of toad
yep sure would cause all sorts of running problems...why is one of them ripped then?
-
- zxr400 oc member
- Posts: 613
- Joined: Sun Oct 21, 2007 12:24 pm
- My Bike: zx7r p6
- Location: Stafford
Re: zx7r help....bike running like a bag of toad
not sure but when i was checking them over, i lifted all the sliders and 3 returned like silently but on wheezed as it returned and a good friend has said he thinks its almost certainly a diaphragm.extonyg wrote:yep sure would cause all sorts of running problems...why is one of them ripped then?
i have a spare set of carbs so will swap a diaphragm over and see if its any better..
i was under the impression a split one would cause poor running higher up the rev range but the bike is sweet above 5k so im still stumped really!!!
help!!!
- extonyg
- zxr400 oc member
- Posts: 405
- Joined: Tue May 12, 2009 9:40 pm
- My Bike: zxr 400 L1 uk
- Location: Portsmouth
Re: zx7r help....bike running like a bag of toad
a split diaphram would cause running problems all the time i would of thought, unlikely but ......make sure it is seated properly and not got twisted or come off.
- Mori Man
- Blingmeister
- Posts: 1976
- Joined: Thu May 10, 2007 3:30 pm
- My Bike: ZXR400J2
- Location: JAPAN
Re: zx7r help....bike running like a bag of toad
When my GT had a hole in one of it's diaphragms it was rough at tick-over and I couldn't get the carb's to balance well.
Used the bike for month's like that and it was only when I was doing a winter overhaul that I discovered it and a blob of inner tube glue soon solved it
Used the bike for month's like that and it was only when I was doing a winter overhaul that I discovered it and a blob of inner tube glue soon solved it
Nothing worse than having an H and not being able to scratch it !
Living life on the edge, SuPposedly
Living life on the edge, SuPposedly
-
- zxr400 oc member
- Posts: 613
- Joined: Sun Oct 21, 2007 12:24 pm
- My Bike: zx7r p6
- Location: Stafford
Re: zx7r help....bike running like a bag of toad
well ive put another diaphragm in from a spare set of carbs but i still have the problem.
im stumped!!!! anyone have any pearls of wisdom?
cheers
im stumped!!!! anyone have any pearls of wisdom?
cheers
-
- CBT slow
- Posts: 734
- Joined: Mon Oct 06, 2008 5:41 pm
- My Bike: zxr400 H2
- Location: essex
Re: zx7r help....bike running like a bag of toad
try a new set of plugs
-
- zxr400 oc member
- Posts: 613
- Joined: Sun Oct 21, 2007 12:24 pm
- My Bike: zx7r p6
- Location: Stafford
Re: zx7r help....bike running like a bag of toad
i thought this but the plugs ahve done about 200 miles however im going to refit the old one tomorrow just to rule it out.lewisdale wrote:try a new set of plugs
the bike is still under warranty and is booked in at the dealer for saturday but id rather fix it myself before then so all and any suggestions are gratefully accepted....
cheers
mike
-
- zxr400 oc member
- Posts: 613
- Joined: Sun Oct 21, 2007 12:24 pm
- My Bike: zx7r p6
- Location: Stafford
Re: zx7r help....bike running like a bag of toad---FIXED
new set of plugs and a diaphragm swap and shes good as new.
rang cradley kawasaki for a laugh and was told a diaphragm was £106.60 each!!!
rang cradley kawasaki for a laugh and was told a diaphragm was £106.60 each!!!