Ignition problem no sparky

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sean7r
Posts: 48
Joined: Fri May 12, 2006 7:07 pm
Location: UK ENGLAND

Ignition problem no sparky

#1 Post by sean7r » Mon Jul 14, 2014 10:28 am

Hi all, had my bike laid up for only a month and now I've no spark at the plug, I started to bell out the wiring from the stator to the cdi and also the kill switch but all is fine, I also tested the trigger wire on the stator and that is pulsing, the other two coils on the stator that power the cdi I've tested also, they are not to earth and show two different readings and when I test for voltage from them I get about 5 volts from one and I think I saw about 25 volts on the other but that may be more than that, anyway, after doing all these tests everything was pointing towards the cdi, so as a last resort I fitted a strobe light, but this was flashing away as I kicked over the engine, so I thought I must have sorted it, I plugged a new plug and still no spark, tried another new plug and no spark, plugged the strobe light back in and it flashes away??
I've tested both coils also with the same results.
Any ideas?
Regards Sean
1984 47x uk model.
RD500LC NS400R KR1 CBR600FL CBR600FS ZX636A1P ZXR750J HAYABUSA BUELL NC24 NC30 ZXR400L SP1 ROYAL ENFIELD 650 & 535 CONTIs TL1000R, 1987 landrover 90, 1977 LIGHTWEIGHT & 1973 88

sean7r
Posts: 48
Joined: Fri May 12, 2006 7:07 pm
Location: UK ENGLAND

Re: Ignition problem no sparky

#2 Post by sean7r » Mon Jul 14, 2014 7:43 pm

Update:- when it got dark outside I moved the bike into the garage, I don't know if I have disturbed something but I now have a visable weak spark! Will try and start it tomorrow.
Regards Sean
RD500LC NS400R KR1 CBR600FL CBR600FS ZX636A1P ZXR750J HAYABUSA BUELL NC24 NC30 ZXR400L SP1 ROYAL ENFIELD 650 & 535 CONTIs TL1000R, 1987 landrover 90, 1977 LIGHTWEIGHT & 1973 88

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nzminis
Posts: 479
Joined: Sat Aug 04, 2012 2:29 am
Location: New zealand

Re: Ignition problem no sparky

#3 Post by nzminis » Tue Jul 15, 2014 3:43 am

when i got my last bike from japan i had no spark . did all the tests could not find any problems , took the cdi from my other bike and it started stright away

but i also found the regulator was charging the battery at 26v so maby that was the cause of the cdi going south

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2smoke
Posts: 662
Joined: Wed Apr 20, 2011 3:18 am
Location: Niagara, Ontario,Canada

Re: Ignition problem no sparky

#4 Post by 2smoke » Wed Jul 16, 2014 10:48 pm

Did you check your battery since its been laid up for a month?
Colin

sean7r
Posts: 48
Joined: Fri May 12, 2006 7:07 pm
Location: UK ENGLAND

Re: Ignition problem no sparky

#5 Post by sean7r » Thu Jul 17, 2014 7:32 am

Hi Colin, battery is fine, has been on an optimate, with 12.7v after I reinstalled it back into the bike. Regards Sean
RD500LC NS400R KR1 CBR600FL CBR600FS ZX636A1P ZXR750J HAYABUSA BUELL NC24 NC30 ZXR400L SP1 ROYAL ENFIELD 650 & 535 CONTIs TL1000R, 1987 landrover 90, 1977 LIGHTWEIGHT & 1973 88

roadtoad32
Posts: 6
Joined: Thu May 21, 2015 12:22 am

Re: Ignition problem no sparky

#6 Post by roadtoad32 » Fri May 29, 2015 1:30 pm

have an 84 bone stock 350(yellow) its kept in Utah so im niot dodging the knuckleheads in so. cal. keep it on a tender.rolled in last weekend and Monday started first kick.Rode it to breakfast ,ran outta gas,returned with pre mix (previous owner rapped the injection system,)rode it home ,next day no start,no spark,nada,have checked all the conections ,last night wasn't even getting lights on when switch was ,this morning when I flip the key on the lights burn dimly and the power valve starts to move.any help would be greatly appreciated Joe

sean7r
Posts: 48
Joined: Fri May 12, 2006 7:07 pm
Location: UK ENGLAND

Re: Ignition problem no sparky

#7 Post by sean7r » Fri Jul 10, 2015 8:23 am

ive now fitted a zeeltronic unit which replaces both the cdi and ypvs controller, starts lovely now.
RD500LC NS400R KR1 CBR600FL CBR600FS ZX636A1P ZXR750J HAYABUSA BUELL NC24 NC30 ZXR400L SP1 ROYAL ENFIELD 650 & 535 CONTIs TL1000R, 1987 landrover 90, 1977 LIGHTWEIGHT & 1973 88

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