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Sv650 s Starting Problem


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Posted

Hello Guys,


Just wondering if anyone can help out though I'm not a mechanically mind person :roll:


Started my bike yesterday first time with no problems, left it running whilst I checked tyre pressures and swithched off after approx 5 mins. Went inside got gear on then back outside to restart whilst finished my cig.


Bike fires up first time and ticks over fine, sit on bike ready to put helmet on, rev's drop a little so apply a little choke and then bike cut's out and wont restart.


Since buying the bike, It's been serviced, due to a backfire issue the carbs where stripped balanced, week or two later had a low battery problem, that was briefly charged via a car battery and everything has been great until yesterday.


Fuel tank taken off and strainer cleaned, but still won't start, turns over great, try's initially then nothing.


Rob.

Posted

Is there fuel in the tank? Engine kill switch?


If the engine has been running for several minutes applying the choke will flood it. Too much petrol wets the spark plugs and inhibits spark. Choke is for cold starting.


After checking the fuel. Take the plugs out and clean them. 8-)

Posted

Thanks Colin,


There is a full tank of fuel.


Have tried the Kill switch, Flicked it to kill and tried wont start, flicked back and tries


With over 24 hours since this problem occurred would the excess fuel not evaporate ?, though i supose with re-trying to start, more fuels been added.


Rob.

Posted
week or two later had a low battery problem, that was briefly charged via a car battery and everything has been great until yesterday.

 


explain more please!!


did you charge it with a battery charger of with jump leads off a car whilst the car was running ?

Posted
week or two later had a low battery problem, that was briefly charged via a car battery and everything has been great until yesterday.

 


explain more please!!


did you charge it with a battery charger of with jump leads off a car whilst the car was running ?

 

Both a charger and on car, but with no revs...


Engine tries to start, but won't, nor will it with a new Yuasa battery.


Rob.

Posted
week or two later had a low battery problem, that was briefly charged via a car battery and everything has been great until yesterday.

 


explain more please!!


did you charge it with a battery charger of with jump leads off a car whilst the car was running ?

 

Both a charger and on car, but with no revs...


Engine tries to start, but won't, nor will it with a new Yuasa battery.


Rob.

 


doing this can cause all sorts of problems as the amps are way too high off a car alternator!!!

Posted

Ooops,


Although, there doesn't seem to be any difference since i tried it and didn't get any signs or smells of Burning.


Rob.

Posted
Ooops,


Although, there doesn't seem to be any difference since i tried it and didn't get any signs or smells of Burning.


Rob.

 


just a bike that doesnt start!!!!


you can blow all sorts of things


but dont panic yet they might not be related

Posted
Ooops,


Although, there doesn't seem to be any difference since i tried it and didn't get any signs or smells of Burning.


Rob.

 


just a bike that doesnt start!!!!


you can blow all sorts of things


but dont panic yet they might not be related

 

Phew,


I did pop out the rear plug earlier, It's only covered about 750 miles or so, the end was rather black and a little wet. Plugs in are Iridium's


Rob.

Posted

the wet indicates that fuel is getting through


try removing them both clean them up and while your at it check for a spark


to check for spark put the plug in the plug cap and hold it against the engine preferably with a pair of insulated pliers!!

Posted

It turning it over fast enough? Making a fast enough wizzing noise when you hit the button? Just wondered if your battery was a tad low again. Odd for it not to start V easily once hot like that though.

Posted

Update:


Still not running, Plugs have been taken out and cleaned, then replaced with a new set, Battery full charged.


More than happy to listen to any ideas.


Rob.

Posted

- Does it try and start but just doesn't quite get there? Try blipping the throttle a bit to give it an initial bit of juice. Also take the clutch in so there's less resistance.


- Try semi-bumping it. You probably won't bump a V-twin with pistons the size of your head but make it cough and it could be the kick up the arse it needs. Get on, turn ignition to on, kick it up to 2nd gear and keep clutch held in. Get someone to push you along (your mum or girlfriend works well - or use a hill to roll down...just get them to push you back up) and slowly let the clutch out. If that doesn't get it going (like I said it probably won't) kick it back into neutral and try and start it from the button.


- Check the fuel petcock. Shouldn't make any difference with a full tank but make sure it's set to ON.


- Turn off all lights, heated grips, any electrical shit you might have plugged in at the time. Having lights switched on takes power away from the starter motor. Also, if you have a battery charger like an Optimate fitted then leave it connected when you try and start it up then when it's running unplug it.


- Before trying to turn it over turn the choke on FULLY. You should do this anyway if you're going to use the choke. I never turn the choke to halfway. When it fires up and over revs just turn it down until it's at about 2,000 while it warms up. After a couple of minutes shut the choke off fully. Like others have said if you turn the choke up while it's running it'll flood the engine.


Hope that helps.

Posted

Might be a silly question Rob, but it is in Neutral isn't it?

Posted

Will try your idea's later Pete.


When trying to start, it is almost there, but just appears to lack that final bit of whatever it requires, I've now have it on the abba stand, have have tried it, then hit the kill button and tried, obviously it's doesn't turn. All lights have been off, side stand down and up, well doesn't go completely down on the stand.


Stedan....


Yes mate,it's in neutral.


I'm working this morning, when i get home it's time to lean to strip a bike.


Would damp cause the problem, Like i said earlier on, it's living outside with a cover at the moment?


Rob.

Posted

I had this problem when i first got my bike, the starter motor turned over but it wouldn't fire. The dealer got a mechanic to come out and have a look, When he tried to start it with a power unit attached it started everytime but as soon as the unit was taken off it still didnt work so it was taken back to the dealers for them to have a good look at. Turned out to be a faulty relay between the battery and starter motor which only cost £2.50. Dont know if this is any help but for such a cheap part it can't do any harm giving it a try!

Posted
:scratch:
then hit the kill button and tried,
:scratch:

 

The engine turns over with the Kill switch off, so by hitting the kill switch the engine Doesn't turn, thus hopefully proving that the kill switch isnt the problem.

Posted

Well thankfully it's now running again...


Poxy Esso fuel was off, we've just dropped the tank and the fuel was all cloudy. A mate just been over and tweaked and fettled a few things and now she's signing like a bird, a very throaty bird ;)


Rob.

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