coils

[M.V.]

From your description I guessing coil bagmaker, I had a similar issue a few years ago, did my head in! I ended up taking it to SJay motorcycles in Tullamarine, $360 later, yep, faulty coil.

It's only the second time I've taken any of my bikes to a shop, & I was happy to pay the money this time!

You're still welcome to pop round & try the coil swap of course.

[bagmaker]

Thanks Mick your a gem.
Did you test the coils yourself before sending?
I have run a resistance check on both coils and although not to factory spec, they are within a bee's of it.
The pickup coil (igniter trigger) is right on spec, resistance wise.

Of course this was checked cold, there could be a temperature breakdown issue but hey, theyre just coils, right? how hard can it be?

I have decided to send the CDI igniter box to Small Coil Services here in Victoria for a checkup, looks like I wont be going to the THOR rally next weekend

[M.V.]

I didn't test them, no, but a simple resistance test may not show up anything, especially if it's breaking down under load...

[bagmaker]

your right about them not showing up on a resistance test,I am told the same.
I couldnt see a coil coming good at 3500 rpm if it were faulty so I will test the CDI first.
Then coil swap time.
Then pickup coil.
then insurance, fuel leak and sparkplug test at the same time.

[SDN]

I had aproblem like this and it turned ot to be a pick up coil breaking down when hot,

You could try putting a spare spark plug on the leads when it is running bad and see what kind of spark you are getting, if spark seems weak or is not producing a spark you would have found it is an ignition problem

I guess you should also try to measure all the resitances of your ignition coils and pick up coils when hot and running badly to eliminate the problem.

intermittant problems are a mjor pain in the arse - good luck with it

[bagmaker]

so sent the CDI igniter box to the experts (Small coil services in Geelong, Victoria Australia), thanks, works as its supposed to, $135 please.
Replace one coil, seems slightly better, still not quite right
replace other coil, seems even better, still not quite right.
Could be the cold weather too, not positive.

I guess I will try replacing the pickup coil next, then the plug caps


grrrrrr

[bagmaker]

if anyone has replaced their pickup coil, could they advise where to get one?
Are they available as just the coil for re-soldering or do I have to get the entire generator section as well.
Surely there is an aftermarket equivelent?

Thanks in advance

[SDN]

when I had problem with the pick up coil, I had to rplace the lot, couldn't get pick up coil on it's own

[Joejamz]

i had exact same problem, ran simple vacuum test and it came out 75%. i had done clearances myself but intake had a leak that was not visible to the naked eye. all fixed now and runs smooth. with all the removing you done with clearances i would hope you replaced the head gaskets as they dont re seal very well and can cause the exact same if not worse symptoms.