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Bikes, Hints'n'Tips => FZS600 Fazer => Topic started by: Louis101993 on 04 August 2012, 11:39:26 pm

Title: Intermittent starting problem
Post by: Louis101993 on 04 August 2012, 11:39:26 pm
Hey guys, got abit of a problem and hoping one of you people could help me out!

I have a intermittent starting problem, everyone now and again (2-4 weeks) I go too start my bike and it's a real slow start crank for a few seconds untill it just dies to a buzz.

It will start from a bump fine, runs fine, but if i cut it out and try start it, same old buzzing.

It generally seems to happen when my last ride out was in rain, and the latest time was very heavy rain.

If I recharge the battery it'll start fine for a varied period of time again.

Testing the alternator with a multimeters bring out a good strong voltage reading.

I'm not sure where to start, bad earth somewhere that discharged the battery when wet? Thats the only thing that I could think of.

Any help is much apperitiated, thanks in advance!
Title: Re: Intermittent starting problem
Post by: darrsi on 05 August 2012, 03:20:28 am
Duff battery, simple as.......
Title: Re: Intermittent starting problem
Post by: Dead Eye on 05 August 2012, 06:25:48 am
I agree with darrsi, sounds like the battery is the culprit here
Title: Re: Intermittent starting problem
Post by: davedee69 on 05 August 2012, 10:29:15 am
Yep, defo a battery issue, maybe a duff cell, check your voltage with multimeter when not running and running, would expect to see 12.6V when charged, each cell should hold 2.1V any less and probably a duff cell. Worth a check.
Title: Re: Intermittent starting problem
Post by: red98 on 05 August 2012, 03:45:08 pm
yes as above.......also worth checking and cleaning all electrical connections and earths just to make sure  ;) ....let us know how you get on  :)
Title: Re: Intermittent starting problem
Post by: Louis101993 on 05 August 2012, 05:22:22 pm
I've only had the battery maybe 4-5 months, which is why I dont think it would be the battery already.

As mentioned above the alternator seems to work fine, battery is giving out a good strong 12.7-8v's.
 
Edit: Currently witnessing thunder storms, not quite the weather to go work on my bike.  :'(
Title: Re: Intermittent starting problem
Post by: Louis101993 on 06 August 2012, 07:20:43 pm
Charged the battery for a good while yesterday and today I've done some electrical probing and I've come up with the following results:

No load - 12.8

Tickover no lights - 14.31

Tickover side lights - 14.27

Tickover dip bean - 14.1

Tickover main beam - 12.9

5k RPM no lights - 14.28

So it seems the charging system is fully functioning.



Title: Re: Intermittent starting problem
Post by: CRH on 06 August 2012, 08:23:10 pm
sounds to me like you got a faulty starter solinoid ;) .....plenty on ebay for around a £10......
Title: Re: Intermittent starting problem
Post by: red98 on 06 August 2012, 08:53:07 pm
sounds to me like you got a faulty starter solinoid ;) .....plenty on ebay for around a £10......


me too..............
Title: Re: Intermittent starting problem
Post by: Louis101993 on 07 August 2012, 12:17:48 am
How would that explain it being only every so often? Now the battery's been charged it starts fine, but I'm going to have my fingers crossed next time there's a down pour and hope it holds up.

If not then I'll being looking further into this.
Title: Re: Intermittent starting problem
Post by: CRH on 07 August 2012, 08:20:24 am
even though you have a fully charged battery!!...the solinoid can still be faulty??  so dont rule it out yet?? ;)
Title: Re: Intermittent starting problem
Post by: Lawrence on 07 August 2012, 08:38:53 am
If it's the solenoid why does charging the battery temporarily fix it?  Wait til it does it again and then measure the battery voltage :)
Title: Re: Intermittent starting problem
Post by: Louis101993 on 07 August 2012, 02:41:30 pm
If it's the solenoid why does charging the battery temporarily fix it?  Wait til it does it again and then measure the battery voltage :)

This is what I meant, although it could be water getting to the solinoid when it's wet.

I'll remember to check battery voltage next time it refuses to start.

Thanks for all the help I'm getting :D