flat battery running problems

Discussion in 'EFI/carb' started by sidquick, Mar 12, 2010.

  1. sidquick Husqvarna
    B Class

    G'day all I'v just got a little issue with my Husky 2009 te250 I hav'nt ridden it for about 5 weeks and she got a flat battery :(. I went to jump it it started and ran perfect until I disconnected the slave battery when it cofed and died. I'm pretty sure its the fuel pump not pressurizing it enough because the battery do'nt have the knackers to run it but shouldn't it be running of the generator so if ya get a flat some how in the bush you can jump off a mate and ride home? rather then run your bikes together untill it charges? I know with some old bikes I'v worked on the coil comes off the battery so we would just re route it to off the magneto and get rid of the battery all together

    can you do this with the efi? I no you cant get rid of the battery because you need some way to presurise the fuel to start with but then you should be able remove it and it will still run

    any thoughts?

    cheers

    (oh it was my dumb fault for forgeting to swith the ignition off lol when i got it i thought beuty il never forget to turn the fuel off lol)
  2. petem Husqvarna
    A Class

    Location:
    Andover, UK
    G'day mate. I'm not an expert but I've seen it suggested that the EFI itself needs a certain minimum voltage to run properly. If your battery is really flat then it will draw a lot of current when it's initially charging and that may be pulling the voltage down enough to confuse the EFI. Or you could be right about the pump if the voltage is really low.

    I'd put a voltmeter on it when it's running with the slave battery connected then watch what happens to the voltage when you disconnect the slave. If it drops right off, you may have something wrong with the charging circuit or your battery might actually be damaged and drawing so much current the bike can't cope without some outside help. If it just drops off a little and the engine stops, then maybe the EFI really is sensitive and you'll need to get the battery charged a reasonable amount before it will run reliably.

    BTW, I've seen it said that you should never run an EFI bike without a battery connected unless it's designed to be battery-less because the battery acts like a reservoir and soaks up some of the power spikes coming from the generating system, and without it you could damage the EFI. People have done that by disconnecting the bike's own battery once it's running, or by starting it using a slave battery but with its own battery not connected then disconnecting the slave. I don't know whether it would cause a problem on the TE250 but I wouldn't risk it without knowing for sure. I just thought I'd mention that in case it looks like your battery may be at fault and you decide to try starting on the slave with it disconnected to see if the engine keeps running when you take off the slave!
  3. sidquick Husqvarna
    B Class

    Yeah I'l dig up the multimeter cheers for the info. It will run but only at idle with no load so its something weird, oh well warrantee. If it dont run i got the first to state champs nxt w.e so I'l be angry if its serious :( lol. the warrantees great iv claimed new stickers had the waterpump rebuilt and a few more lil nigily things that the dealers fixed for me that he has noticed

    thanks heaps Petem
    :D
  4. petem Husqvarna
    A Class

    Location:
    Andover, UK
    Yeah, gotta love that warranty! I've had a few things repaired on mine that could have cost quite a bit. Good luck with getting your bike sorted - hope you make it to the champs ok and show 'em what a Husky can do! :thumbsup:
  5. sidquick Husqvarna
    B Class

    So far last year I could only show what husky could do to me haha. First ride on the te I took it to a mx and last lap last moto had a brain melt forgot how to ride hit a rock after I landed off a big step up tore my shoulder right up as usual lol and completly smashed the front end up on the bike :(. Its all good now though iv goten use to it :).

    just one question to ask you i love the stock suspension settings for the woods but could you give me a tip for clicking her in for the next mx i do ? I'm 67 kg + riding geer.

    Thanks heaps Petem :)
  6. petem Husqvarna
    A Class

    Location:
    Andover, UK
    Ouch! Must be a Husky thing as mine gave me a bad shoulder too - the rear dug in half way through a brake slide turn and launched me over the high side. :doh: :cripple:

    Wish I could help with the suspension settings but I only trail ride, and I've found the stock settings work really well for me on that. Since I don't do any motos I have no idea what would work there, and in any case I think I must have heavier bones than you as it's been a long time since I was 67kg! There's plenty of people here who do race though, so I'm sure someone will be able to help. If you can't find anything by searching the existing posts it might be worth starting a new thread to ask the question so that everyone sees it.
  7. sidquick Husqvarna
    B Class

    Good idea Pete thanks :P. I had one other problem my front wheel completely locked up on me for no reason when I was in a practise and stoped at the top of a table top went to start again and I droped it very embaresed, I got up and did it again and I droped it WTF I thought. So I jumped on hard on the gass and wheelstood till I was off the track put it in first sat on the tank and reved it and it freed up and worked perfectly ever since... very scary lol
    cheers
    sid
  8. petem Husqvarna
    A Class

    Location:
    Andover, UK
    Wierd! I wonder if something managed to get wedged in under the pad and jammed it up, or maybe there was something stuck somewhere else like through the spokes? :thinking:

    Only time I've seen that happen was to a friend who had a Guzzi Le Mans many years ago. Hadn't ridden it for quite a while and went to ride it out of the parking space, but it didn't go forward and instead toppled over and hit the car parked next to it! :eek: Turned out the pads had rusted to the disk, and when he then forced the wheel round half the pad came off and went round stuck to the disk.

    I shouldn't imagine yours went rusty and seized up half way through a lap though. Not even I go that slowly... :lol:
  9. seymore Husqvarna
    AA Class

    Location:
    Boise, ID
    The Husky EFI bikes need a working battery to run. There is a warning in the owners manual about not trying to run the bike without the battery connected. Which is the same thing as a battery with an open cell.

    The EFI needs about 8 volts to run the pump and ECU. The power from the alternator/regulator needs the storage/ filtering effect from the battery to power the ECU. The bike won't run very well or at all with a bad battery.
  10. sidquick Husqvarna
    B Class

    yeah figured that lol :) whats the point of the kicker then lol