zx7r cut out

hey guys went ot on zx on thursday and i opened her up to about 120 and when i let off and tried to accellearte anain there was nothing there when i pulled the clutch in she cut out it felt like it was being starved of petrol but i had a full tank cheaked the fuel line it was fine she will crank over but wont fire up so im thinkin ether carbs are blocked or the fuel pump has gone . has anyone got any ideas what it might be

 

have you checked to see if its sparking as it sounds like a cdi problem

 

ABOUT RIGHT THERE CHECK CARBS AND FUEL PUMP IF NON OF THESE CHECK IMMOMBILSER HAD TO BUY NEW ONE FOR R6 LAST YEAR HAD SAME PROBLEM MYSELF AND THIS WHAT IT TURNED OUT TO BE .... HOPE IT HELPS YOU OUT .. JUST DONT DO WHAT I DID :banghead: IT ONLY HURTS

 

oh god help you... lol.... sounds like mine

 

Sure something ha not got wet.

 

Doddy, join this website.....there is nothing these guys don't know about 7r's......I will say, fill your profile in 1st before you post, or you'll get nowt but abuse.......will prob get some abuse anyway.......but you will get ya bike fixed.....Oh and don't mention me, cuz that will increase the stick...

http://www.redmonkey.com/7r/

 

if it was the immombilser it wouldnt crank over or at least thats what i thought but i could be wrong

 

thanks mate ill have a look into it

 

can you hear the pump prime when you turn it on

 

Hi mate, im sure you've checked the 'idiot' point ? kill switch ? A 125 i had died coming to a roundabout years ago, wheeled it to a petrol station and filled her up only to realise i'd hit the kill switch lol

 

And check the fuel tap......

 

my blackbird still turned over but would not start when i was having immobiliser problems

 

yeh ive got a feeling the kill switch and immobiliser would just stop the spark rather than inhibiting the starter (but im not sure, some bikes may be different) so may be worth just checking that you have a spark (and whilst you got the plugs out just see what condition theyre in and whether it smells of petrol). wierd why it did it when you were flat out though, not sure if theres something there or whether it was just a coincidence.
Just throwing an idea out there but maybe some condition occurred at that high speed that fouled the plugs meaning they need a good clean ??
Whip 'em out and let us know !

 

the first thing to see if the fuel pump is primeing if thats not than its getting stopped by something else

 

If it just cut out then it's more likely to be ignition related by the sounds of it. Check the wiring around the headstock.

As it's carbs and the tank had plenty of fuel, the carbs should still refil by the wonders of gravity, bike will still run but you won't have full throttle as the carbs cannot refresh quick enough by gravity. check the pump anyway.