fazerboy Posted July 31, 2011 Posted July 31, 2011 my 1000 has started playing up...grr get to about 80 some times more sometimes less around 5000 6000 revs,its stuttering and sort of cuts out until at a lower speed and then picks up only to do the same thin again..off the france at end of month so need it sorting...any ideas? Quote
fazerboy Posted July 31, 2011 Author Posted July 31, 2011 enlighten me please mr bear...if fuels starvation,how come at the same revs all the time and not higher or lower or not totally cutting out?cheers Quote
Colin the Bear Posted July 31, 2011 Posted July 31, 2011 The faster the engine revs , the more fuel it draws. You have enough getting through for 5k but no more. Could be a partialy blocked in line filter or kinked fuel line. Quote
Bogof Posted July 31, 2011 Posted July 31, 2011 The faster the engine revs , the more fuel it draws. You have enough getting through for 5k but no more. Could be a partialy blocked in line filter or kinked fuel line. I have the same issue with a CBR400. It won't go above 8k revs. The airbox is broken and doesn't quite connect on 2 carbs, would that cause it? Quote
Tango Posted July 31, 2011 Posted July 31, 2011 The faster the engine revs , the more fuel it draws. You have enough getting through for 5k but no more. Could be a partialy blocked in line filter or kinked fuel line. Or blocked fuel tank breather. Quote
7vwh Posted July 31, 2011 Posted July 31, 2011 check there's nothing blocking the air intake, it's just forward of the battery. Quote
Tango Posted August 1, 2011 Posted August 1, 2011 Clogged air filter......not the most likely cause...but easy to check.Is it only in top gear that this is happening.....or is it 5k plus in all gears? Quote
megawatt Posted August 1, 2011 Posted August 1, 2011 Don,t think anything to do with fuel. Maybe a switch in the ignition circuit that is vibrating.? Wd all switches and test em? Quote
rennie Posted August 1, 2011 Posted August 1, 2011 I will bet it's none of the above! It will be the exup valve not working correctly!it opens at around 6000 revs. Quote
7vwh Posted August 1, 2011 Posted August 1, 2011 if the exup isn't working properly then the tacho bounces up to 7k and back to let you know. Quote
fazerboy Posted August 1, 2011 Author Posted August 1, 2011 It happens at all gears at around 5/6000 revs it doesnt go to 7000 and come back down...i actually had it too 100 but I wound on a little bit more and wosh down it came again.ive not had it out much latley...im wounderin if I got a mouse in the airbox or something as ive had the seat off and left it Quote
Tango Posted August 1, 2011 Posted August 1, 2011 It happens at all gears at around 5/6000 revs it doesnt go to 7000 and come back down...i actually had it too 100 but I wound on a little bit more and wosh down it came again.ive not had it out much latley...im wounderin if I got a mouse in the airbox or something as ive had the seat off and left itYeah...check your airbox and filter. Could have any manner of stuff in there!! Quote
TC Posted August 1, 2011 Posted August 1, 2011 Have you put any Comms/sat nav equipment under the seat.There is a lovely little compartment under the seat to fit it all into. However the whole compartment has to be left empty to provide enough air flow for the intake. Quote
fazerboy Posted August 1, 2011 Author Posted August 1, 2011 Well funny you should say that....i just disconnected the hardwire for a tomtom rider and removed some wires destined to be used on some heated grips...but ive attatched a cigarette lighter attatchment....would this have affected it? Quote
7vwh Posted August 1, 2011 Posted August 1, 2011 The electrical side of things shouldn't have made any difference, where you put the cig ligher attachment might have. Here's a couple of pics of mine....The opening is the intake to the air filterhttp://i229.photobucket.com/albums/ee79/7vwh/stuff/CIMG3245.jpgFrom above it looks like a small storage space, anything stuffed down there will affect the intake.http://i229.photobucket.com/albums/ee79/7vwh/stuff/CIMG3246.jpg Quote
Colin the Bear Posted August 1, 2011 Posted August 1, 2011 You have an untidy underseat compartment.....and here's me thinking you were a bloke Quote
7vwh Posted August 1, 2011 Posted August 1, 2011 this is the untidy end.......http://i229.photobucket.com/albums/ee79/7vwh/stuff/CIMG3248.jpg Quote
Colin the Bear Posted August 1, 2011 Posted August 1, 2011 Is that a video cassette and a packet of condoms? Quote
TC Posted August 1, 2011 Posted August 1, 2011 Much tidier than mine Then clear it out and go for a blast.note:- The air intake is towards the front end of the battery Quote
fazerboy Posted August 2, 2011 Author Posted August 2, 2011 Well got under the seat and cig lighter was in the air box appateur...moved it and low n behold woooosh off it went..so popped over too jordans and put it on the dyno...a healthy 118 bhp and 156 in fith...im happy. Cheers all.... Quote
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