F4 750, starting problems! - MVAgusta.net
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post #1 of 13 (permalink) Old 09-18-2007, 01:14 PM Thread Starter
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Unhappy F4 750, starting problems!

this morning the sun was shining and I jumped out of bed to get a few houres on the bike.. but when I turned off the alarm, and put the ignition on, nothing, dead... no display, no starter...
after checking and charging the battery, still nothing...
so I went to datatools page and found the way to reset the alarm and imobilizer (it tok 6 houres!)

after, charging the battery, resetting the alarm, still nothing... absolutley dead..

so now I need some help.. the bike is a 01 F4s 750.

the alarm goes on and off like usual, and all seems fine...
expet for the starting part...

oh, and btw, the battery measures 12,8v so it should be fine.. atleast give a little blipp in the display

Last edited by AfroAlien; 09-18-2007 at 01:22 PM.
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post #2 of 13 (permalink) Old 09-18-2007, 01:41 PM
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Kill switch?

'98 916 SPS. '01 MV F4S 750.07 Suzuki VStrom
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post #3 of 13 (permalink) Old 09-18-2007, 01:43 PM
Main fuse 40a?


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Keep one wheel down!

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If you can't fix it with a hammer you've got an electrical problem!


No MV's in the garage anymore
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but I pop in here from time to time
. Come to think of it I don't have a garage since the old one burnt down!
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But...Ö..a new one is currently rising from the ashes......watch this space!
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Last edited by john; 09-18-2007 at 02:00 PM.
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post #4 of 13 (permalink) Old 09-18-2007, 02:02 PM Thread Starter
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not the kill switch unless it is a secret kgb switch installed somewhere... and if the regular killswitch was on, the ignition would still turn...

I will go out and check the main fuse now...

nope.. not the fuse..
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post #5 of 13 (permalink) Old 09-18-2007, 02:11 PM
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Latch relay / dash fuse? (7.5A next to fuel pump fuse). Do you have means to check/probe for voltage (some sort of volt/multimeter)?
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post #6 of 13 (permalink) Old 09-18-2007, 02:28 PM Thread Starter
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the fuses are ok, and yes, i can probe for power with a multimeter.... but if all the fuses are ok then it should not be a problem?

the indicators flash when I turn the alarm on and off... so everything with the alarm seems ok... but maybe the imobilizer has stuck? or something...
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post #7 of 13 (permalink) Old 09-18-2007, 02:48 PM
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It may be the immobiliser but I'd expect the immobiliser to be tied into just the start/run circuit rather than any sort of ignition or general power circuit. If it were the immobiliser I'd still expect the ignition, lights etc.. to power up. That's not to say that yours isn't perhaps wired in differently from what I would consider the 'norm'.

If you suspect the immobiliser then you're going to have to trace the alarm/immobiliser wiring and work out exactly were it cuts into the various circuits to be able to diagnose it properly.

It may also be worth checking the ignition switch feed and it's out to the general relay.
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post #8 of 13 (permalink) Old 09-18-2007, 02:56 PM Thread Starter
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I hate alarms....
if i forget to turn of the alarm, the ignition still turns on.. but the fuel pump does not prime and starter does not turn...
but all the dash and lights work...
and all of this happended over night, no problems earlyer... just this.. bollocs..
looks like I have to get it to the shops and rip out the alarm...
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post #9 of 13 (permalink) Old 09-18-2007, 03:08 PM
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Sounds to me like your alarm is tied into the kill switch circuit and starter motor relay coil. If that's the case I would think it highly unlikely that an alarm/immobiliser fault would cause total loss of power.

Obviously difficult to say without seeing the bike but I'd suspect if you have no power to anything at all then the problem is probably more likely to be related to the ignition switch (or power to/from it) or the 'general' relay.
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post #10 of 13 (permalink) Old 09-18-2007, 03:12 PM Thread Starter
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if I didnot have any power to anything... would the indicators flash with the alarm then?
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