Coil Pack? Derbi Senda Cross City

GTR1400 · Trackday Trickster Joined: 16 Apr 2011 Karma :

Hey guys,

So I've been riddled with problems with my Derbi since I got it back in May last year. Recently, I've had problems that I thought were probably battery related. Bike one day just wouldn't start up, had to get the AA out as I was 20 miles from home.. only needed a jump to get it working, and so I went back home.. and the bike remained in that state, unable to start.

Fortunately, I live in a house with a load of other students, one of which is a mechanic. After having a look, he thought getting a fresh spark plug could do the trick (starter motor was fine.. old spark plug was in need of replacing anyway). Unfortunately this didn't work, and so he had a look at my coil pack.. took it up to the garage where he works to have a proper look, and he told me that it was "well and truly f***ed".

From the symptoms of my bike and him saying that, it does seem like that could fix the issues I've had.

Question now though is, where do I get one from? Are they practically the same on all bikes, so I could just pick up any random one?

After searching eBay, I've found Derbi coil packs, but nothing specifically for the Senda Cross City 125. Will any Derbi one be ok?

Any advice is appreciated guys Smile

Thanks,
Liam

PS: OTHER DERBI COIL PACKS I HAVE FOUND-

https://www.ebay.co.uk/itm/Derbi-Senda-R-125-4T-Coil-And-Plug-Cap-/220726814568?pt=UK_Motorcycle_Parts&hash=item336457e768#ht_2937wt_1270
https://www.ebay.co.uk/itm/Coil-Pack-For-Derbi-Gpr-125-/261054884444?pt=UK_Motorcycle_Parts&hash=item3cc8156a5c#ht_500wt_1287[/url]

chris-red · Have you considered a TDM? Joined: 21 Sep 2005 Karma :

If it would jump start fine I can't see how the problem is coil related.

How is the coil 'fucked' does it still jump start? If it jump starts fine you need a new battery or maybe a reg/rec. If it jumpstarts Start it and put a multimeter across the battery if it reads between 13-14.5 volts whilest running and the volts raise with the revs you need a new battery if not you need a new reg/rec and maybe a new battery.
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Rogerborg · nimbA Joined: 26 Oct 2010 Karma :

moonzoomer · World Chat Champion Joined: 01 Jul 2012 Karma :

Could the mechanic who suggested the "coil pack" be referring to the bottom coils which are located on the end of the crankshaft which generate a low voltage signal for the second H.T coil which generates the spark, if this is the case you will need one of these.

https://www.ebay.co.uk/itm/DERBI-SENDA-GPR-STATOR-COILS-AND-FLYWHEEL-NEW-DERBI-82852R-/330744694876?pt=UK_Motorcycle_Parts&hash=item4d01eb885c

GTR1400 · Trackday Trickster Joined: 16 Apr 2011 Karma :

thomp1983 · Crazy Courier Joined: 05 Feb 2011 Karma :

liam did he do the basic check of taking the plug out fitting the plug cap to it, holding it against the block and trying to start it to check for spark? the way he's gone about it is completely wrong unless you've forgotton to give us all the info of what he's done. if i rememeber rightly your somewhere near derby aren't you?

chris