Bike won't start

[swanman]

Just tried to start my exup 1000 and she won't go. This bike is in great condition and recently fully serviced, and it has always started within 1-3 presses on the tit. The starter motor goes fine. Motor doesn't even catch a little

Things I have checked so far are. Fuel yes, fuel comes out of fuel line to carbs, yes, fuel pump is working, yes. Thing I have noticed is that even with choke full on or off there is no wiff of fuel, as if the fuel is not going into the motor itself.

So any ideas? I am standing by with spanner in hand. I am sure it is simple. Air lock? Bikes stays outside under a cover and I haven't ridden it for a week.

CHeers Fraser. 021 215 8689.

[DemonWolf]

Hope its nothing as silly as the kill switch on?

[bugjuice]

checked the fuse for the ignition/spark?

may be take the airbox off and have a peek in there, see if there's anything obvious

[swanman]

No, I thought that and checked the kill switch. I'll have a look for the fuses.

[bugjuice]

which bit?

[crashe]

Is the bike attempting to turn over at all.....?

If not check your battery....
Like how old is it. could be dead or a dead cell can cause the battery to not work.

[swanman]

Yes bike turns over normal rate.

Have checked fuses all fine. Have checked air box fine, very clean. Now going to have a look at plugs.

[James Deuce]

Sidestand cutout switch?

[MrMelon]

Crash start that mofo?

[swanman]

Ok NO SPARK, at least on left cycliner. After dismantling the layers of plastic, I wipped the plug out (contortion act) and put lead back on held it against some metal on side of rad and nothing......

Right, sidestand cut out switch, next.

[aff-man]

Check plugs. Both my zxr400 and CBR600 (when i had them) wouldn't start after leaving them sitting for 2 weeks.. Cleaned off plugs with some steelwool and they started up first try:doh:

[bugjuice]

against the engine block is often the best bet, but you'd probably still see it. At least you have a cause now..
now check everything (like the kick stand switch) that has an influence on the spark

[swanman]

The side stand switch was off its mount as a retaining bolt had fallen off. Interesting. I trace the wiring of side stand switch, 2 wires feeding into the main loom. So I unplug the connectors and then join one wire directly to the other. So the switch is now isolated. Go back to plug. I now have a week spark, just see it, I then disconnect the connection I made to see if it made a difference, no, still week spark. That don't make sense. So now I have a weak spark showing on one plug. BTW the plug is very black.

[WRT]

Give the plugs a good clean and check the gap on them, see what happens, you may be up for a new set of plugs. Would be surprised if the sidestand stops only the spark, normally you cant even turn the engine over . . . but I dont know your particular model bike so I may be wrong. Sounds like you have managed to take it out of the equation anyways - well done!

[crashe]

Crash start that mofo?

You aint seen his driveway have you? :rofl: :rofl:

Its all up hill with lots of (huge) boulders on all of the driveway... (pt)

If he was at the top of his driveway, way up by the road then sure crash start it.. but that one long driveway to get it up there :rofl: :rofl:

[swanman]

OK all plugs are now out, and they all look the same. Black and a bit oily. I have just found some wire wool so will scuff em up and then stick em back in.

Amazing to get the plugs out I have to dismantle the ignitors that sit on a little shelf about the plugs. So far I have about 30 fastners loose, a fuel tank off, an air box off and a side faring and tail piece off, ignitors off , just to get the plugs out, and check the fuses. :blink:

[WRT]

Ah well mate, you'll be an expert in all this by the time your done! Good on ya for giving it all a go tho, sounds like you have tracked down the prob, just got to remember how it all goes back together now!! ;)

[bugjuice]

lol.. and in between pulling the bike apart, you have time to give us a step-by-step update! next, it'll be via webcam :niceone:
good on ya, keep goin..

[Postie]

lol.. and in between pulling the bike apart, you have time to give us a step-by-step update! next, it'll be via webcam :niceone:
good on ya, keep goin..

easy with the webcam buggy, we know what you get up to with those......

[HDTboy]

Did you try jump starting it before pulling it all to bits? It could be as simple as low battery voltage

[T.W.R]

moisture in the E/I maybe ? doesn't take F/A to upset it. whip the cover off & give it a blast of WD40 or similar

[swanman]

Ok.......... CLean plugs put it all back together.Check everything looks more or less as I found it. (what a mission to get the plugs, ht leads and other crap back in). Fuel tank on. Press the tit................

Starts first time. Goes straight to idle.

All that's left is to get all the shit back on that I took off and hope there's nothing left over.

After due consideration, not sure what was wrong with it. Dirty plugs? SIde stand switch, jiggling connectors, air lock?? But it works. So thanks everyone. All that with just the tools in the bike kit too.

NExt installment web can amateur mechanics getting the back wheel off with no bike stands whatsoever. Craash

[crashe]

Well done mate...:banana: :banana: :banana:

So for xmas pressie's you are putting in a order for tools aren't you?

Now go and take the bike for a spin around the block...
yep its a decent size block in the area you live in....
do not stop at the jail... You have a special pass to go right past it.. :rofl:

[bugjuice]

possibly a bit of everything..

or may be since you left it standing for a week, it just wanted some attention from you to make up for the neglect.. girls get a bit like that too sometimes.. before you can go for a ride, you just have to make sure they're tickety boo..

[T.W.R]

NExt installment web can amateur mechanics getting the back wheel off with no bike stands whatsoever. Craash

just wanted attention huh, tempramental fizzer lols.

as for the wheel job, have you got axle-stands for a car? they're handy to do the job. or if not M/C tie-downs & a carport or garage with beams? do the loop the tie-down over the beam trick & suspend the bike from the tie-downs

[crashe]

just wanted attention huh, tempramental fizzer lols.

as for the wheel job, have you got axle-stands for a car? they're handy to do the job. or if not M/C tie-downs & a carport or garage with beams? do the loop the tie-down over the beam trick & suspend the bike from the tie-downs

Swanman's whole driveway and parking area is gravel (Huge Boulders) (pt)

[bugjuice]

NExt installment web can amateur mechanics getting the back wheel off with no bike stands whatsoever. Craash
come round and get my pit stand..

[skelstar]

Since this thread has started to run its course, perhaps someone would like to explain the 'EXUP' thing. Im assuming its a series of FZR motor that uses some kinda technology?

[James Deuce]

Since this thread has started to run its course, perhaps someone would like to explain the 'EXUP' thing. Im assuming its a series of FZR motor that uses some kinda technology?

It's an exhaust valve that optimises gas flow to maintain mid-rpm torque despite a restrictive muffler.

[T.W.R]

EXUP= exhaust ultimate powervalve.
its a butterfly valve in the exhaust system located between the headers & muffler its attached to a servo motor which in turn is linked to a microprocessor linked to the ignition.

and argh! a goat track driveway mmm bugger!

[swanman]

Took it for a spin all sweet and back together as it was. I was jus jokin about the rear wheel thing. Well for the moment anyway. I am actualy in the process of moving house now to Dairy FLat, where there is a flattish driveway and a double garage with internal access, so things should be a lot easier than here as I have had to prop the bike up in gravel and crawl around a bush to get at bits of the bike.

Cheers, Fraser (the mechanical GOD):blip:

[aff-man]

Yip told ya it was the plugs if they were black and oily looking it means they were fouled. I have learnt the hard way.... twice.... to keep a bike running every few days.

Glad she is up and running.

P.s. they got the date wrong so we are actually racing the minimoto's again tomorrow... trashman should have all his go fast bits on his so he will crash really good this time:blink: :blink: :lol: :lol:

[Zapf]

Ok.......... CLean plugs put it all back together.Check everything looks more or less as I found it. (what a mission to get the plugs, ht leads and other crap back in). Fuel tank on. Press the tit................

Starts first time. Goes straight to idle.

All that's left is to get all the shit back on that I took off and hope there's nothing left over.

After due consideration, not sure what was wrong with it. Dirty plugs? SIde stand switch, jiggling connectors, air lock?? But it works. So thanks everyone. All that with just the tools in the bike kit too.

NExt installment web can amateur mechanics getting the back wheel off with no bike stands whatsoever. Craash

with older electronics and a bit tired. Spark won't be strong enough to go thru the oil and crap that has build up on the plugs... hence your problem. happens with cars too...

next time... if there is next time.... check the plug gap.. sometimes if the coils are tired then gaping the plugs closer will give a cleaner spark and makes engine rev better... but too small a gap will affect power output.

:)

[CBRAero]

In case its of any use, I'll describe my experience gained when fixing up an old CBR 400 Aero which had similar difficulties. This particular bike had problems with a weak spark, fouled plugs and general starting problems. After a couple of weeks I was able to get all the plugs out, clean them, reinstall and start the machine in about 15 minutes!

First point, the engine itself was fine, no issues. The problems elsewhere were manifold however.

1. The charging system. The regulator/recifier unit on these bikes is weak and had partially failed, meaning the battery wasn't charging well (look for about 14 V across the battery while the bike is running). I was getting about 12.5 V, not enough. As a result of a poorly charged battery, the engine would not crank at the required speed for trouble free starts. A heavy duty after market R/R fixed that problem.

2. The ignition system. The HT leads from the coils were old and semi corroded. In with new leads, a move which resulted in a hotter blue spark. Also the wiring to the HT coils needed cleaning and fixing.

3. Carbs. The tank and carbs were full of rust. Relining the tank, cleaning and refreshing the carbs with a Honda kit and then using two inline fuel filters fixed this problem.

Result. Bike starts without a hitch now. Course, I did it up so I could sell it, I'm now looking for a CBR600 F4 or F4i.....:blink:

[v.ros`]

Hey all.....
Not sure how old this thread is but im not stuck with the same problem with my cbr600 f4i ,
i m now only gonna try to clean the plugs n then c if it works..... Other then that i went all the way down to removin the nozzle or injector to check if fuel is being sprayed or not n yes i c it is gettin sprayed . Also checked the sparks n yes there is sparks on all 4 ! But still no luck n worse of all is im in the middle of the bush in africa !! With no other cbr600 on site :(

i have explained my situation in another thread under electrical help so please any help will b appreciated. Please reply on that thread so i can follow easily please.....

Thank u all

[FROSTY]

Vros--think this thing through-- Back to your ABC's
what does an engine need to run?
good enough fuel to ignite -compression,spark,air to breath and all being in the correct timing.
If any of those are missing it aint gonna go