larrythelathe
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| posted on 12/5/08 at 07:55 AM |
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frustration
I still have my odd problem i drive along put my foot down and the engine goes burrrr burrr sometimes if i dip the clutch and rev it again it clears
however sometimes it dies.
I have tried the following
new coils
new plugs
new rectifier (added a fan to keep it nice and coil.
Balance carbs they are spot on.
it's driving me nuts not being able to find the fault, any ideas will be most welcome.
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BenB
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| posted on 12/5/08 at 07:59 AM |
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Hesitation on WOT?
What engine / carbs are you running?
Usually I'd worry about the accelerator pumps but seeing as you're in the BEC section you're probably running CV type carbs which
don't have any 
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larrythelathe
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| posted on 12/5/08 at 08:00 AM |
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oops
its a zx9r e series the carbs however are c series.
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Mr Whippy
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| posted on 12/5/08 at 08:04 AM |
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sounds more like and ignition fault, like a poor spark
Fame is when your old car is plastered all over the internet
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BenB
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| posted on 12/5/08 at 08:06 AM |
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This might help
http://www.highlifter.com/forum/m_1872049/mpage_1/key_/tm.htm
Then again it sounds like banjo playing cowboys. Yeeehaaaa!
I suspect the problem is more run of the mill than needing to drill out jet holes...
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larrythelathe
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| posted on 12/5/08 at 08:06 AM |
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has to be warm
it only does it after 8/9 miles of driving its driving me nuts.
if i stop for 30 seconds all returns to normal.
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r1_pete
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| posted on 12/5/08 at 08:09 AM |
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Are the carb slides sticking?
BTW what is 'WOT' an abbreviation for?
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larrythelathe
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| posted on 12/5/08 at 08:10 AM |
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ok
so do i have these pilot screws on a zx9 carb?
I thought i could only changed the mixture by changing the jets?
[Edited on 12/5/08 by larrythelathe]
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Triton
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| posted on 12/5/08 at 08:17 AM |
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quote:
Originally posted by r1_pete
Are the carb slides sticking?
BTW what is 'WOT' an abbreviation for?
wide open throttle...by any chance?
My Daughter has taken over production of the damn fine Triton race seats and her contact email is emmatrs@live.co.uk.
www.tritonraceseats.com
www.hairyhedgehog.com
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andyharding
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| posted on 12/5/08 at 08:17 AM |
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Think your looking to make a mountain out of a molehill sounds like fuel starvation to me. Either your fuel pump can't keep up of the pickup is
in the wrong place. I.E. on tickover all is fine, driving you slowly empty the float bowls and then stopping for 30 secs is enough to allow them to
refill.
Are you a Mac user or a retard?
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Triton
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| posted on 12/5/08 at 08:18 AM |
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Can change needle and springs with a dyno jet kit
My Daughter has taken over production of the damn fine Triton race seats and her contact email is emmatrs@live.co.uk.
www.tritonraceseats.com
www.hairyhedgehog.com
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Guinness
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| posted on 12/5/08 at 08:18 AM |
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quote:
Originally posted by r1_pete
BTW what is 'WOT' an abbreviation for?
Wide Open Throttle, in other words the normal position 
Larry, have you checked the fuel filter / air admittance into the tank? I had an old VW Scirocco that used to start fine, drive for 20 mins then
splutter and die. Fine for my commute but I couldn't go any further! It would start again almost immediately and run for another 10 mins.
After loads of trial and error it turned out to be crud in the tank was being sucked towards the outlet from the tank and starving the fuel pump.
I'd changed the fuel filters, but this was so bad it was blocking the outlet from the tank. Took the tank off, swilled it about and drained it
off a few times cured it.
It could be crap being pulled into the filter?
Or an air lock in the tank? Do you have a breather / air admittance valve?
Failing that, possibly the spark plug leads breaking down when the engine warms up? But that wouldn't explain the ability to re-start and run
OK.
Mike
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larrythelathe
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| posted on 12/5/08 at 09:00 AM |
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OK
I will look into the fuel at lunch time
It is pumped from the tank thro to a regulator looks like a disc thing.
Also i will check to see if i have a filter in the system.
The wife had never heard me curse as much as yesterday!! for future reference she left me be for a good few hours after so i did learn something
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JimM
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| posted on 12/5/08 at 11:42 AM |
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I'd go with the fuel pump / filter problem as well. I had similar problem which was cured by changing pump and adding a regulator and setting to
3 psi. Check what pressure you have ...
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larrythelathe
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| posted on 12/5/08 at 11:53 AM |
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ok
filter in the pump is nice and clean
i have a petrol king fuel saver
i needed to find out how to increase the pressure
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Crazy Eddie
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| posted on 12/5/08 at 05:51 PM |
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ZX9R could be different to blade but this I'll explaine my issues and see if anyone can confirm.
Did have facelet (or whatever the things are called) pump and Fuel pressure regulator. IMHO Bag of Sh*te and never got it working properly.
Got rid of the lot (pump and regulator) and just fitted a blade pump - all was sorted.
Hope this helps
Cheers
Eddie
www.EdwardsSchoolOfMotoring.co.uk
For online shopping that earns you money : Ei42.com
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larrythelathe
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| posted on 12/5/08 at 06:12 PM |
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horray
I upped to fuel pressure to 8 psi (gauge was made in 1921 for a old truck!! thanks Andy)
Sure thats too much but.........................
It works and at last i have been able to blast the E series and it goes like stink!!!!
Thanks to all who helped me with advice i am very grateful
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