I did download a pdf file about cdi and tci but haven't read it full yet .So i will refer it.From what i've read and know is that.The tci/idi set up keeps sending a constant voltage to the coil from the source which is a battery and when the tci unit cuts off the supply the coil collapses to generate a pulse for the plug.
Yes you are right RTR is a ac dc set up .So unlike our bikes it wont start without a battery as that is its only and direct source of power.As i said ,i know little about these things so maybe you can make out more from it.
The fiero's gearing is tall .So its very rare to hit its rev limiter so i wasn't aware of its existence either till now.But the ZEN TVS guys are sure of it.
I've given you the link to the info i downloaded ,maybe you can go through it if you are interested and let me know about what you think i might need.
Anand

Ignition FAQ

Its no big deal. You can easily buy a tacho of the unicorn for 600 bucks and fixing it is a easy job .But you have to find a casing for the tacho and make clamp to fix it.
Anand

you yourself answered that query..
since joel has already done it, ask him, he might let you know exactly in detail..
i have never done it so i really can't say anything about it..
why don't you pm him, you'll get a detailed reply...


well anand
the link you have posted is too much of read..

well as much as i know..
revv limiter can be present in only multi cylinder bikes..

this is what your link said...

if we follow this
then in your case, first of all you DON'T have a tachometer to tell the revv limiter circuit that it is over revving..
secondly
if in case it works this way then too what it actually does is kill the spark in the front cylinder in that bike which has a rear cylinder too.
if it kills the spark in YOUR bike, being a single cylinder, don't you think the bike will turn off all of a sudden due to the absence of the spark ???
as you don't have a rear cylinder..

let us consider another way of the revv limiter working..

fiero has a 2 phase coil,
1 phase is lighting phase, other one is charging phase..
if this bike still has a revv limiter, the only way it can work is that the current generated in this coil will use only 3 or 4 poles for charging as another is lighting phase !!
the revv limiter (if present) will calculate the current inside this charging phase, the more you revv the more the bike would generate current..

if the current reaches a particular point, (which means you have reached the revv limit) then it might turn into action..

but
classic Fiero doesn't have a yellow pole in the stator which gives current to the spark plug.....
so what can it cut out??

imjoshee's bike is turned into dc, with only 1 phase present for charging only..
if we consider that it does cut out at specific current still then his bike is giving 7 poles instead 3-4 than obviously the current is higher...
it should cut off but it is working fine...
his bike is same as before..

bottomline is how will the revv limiter function??

imjoshee will upload the pic of the stator and when you'll see it you'll understand better..

REMEMBER
all these are just MY opinion..
they can or cannot be correct...

You misunderstood my question.What i was asking was for you to get a idea about TCI ignition system and what are the parts which i needed to change for this conversion to take place.
As it is i know that the things i would be needing would be digital TCI ignition system and the coil needs to be replaced as IDI ignition coil is a high resistance one which is the opposite of CDI.Obviously the capacitor wont be needed.
Maybe i should have given you the direct link of the TCI ignition part to make things clearer.I don't intend to take the revv limiter off the CDI .I intend to replace the whole system.
All of the 150cc+ bikes in our country with digital CDI systems have revv limiters.What it does is ,it doesn't cut off the spark,it retards the curve so that the bike wont revv beyond the set limit of the advance curve.
Anand

In digital CDI systems as i am sure you are aware of the Digital CDI unit takes care of the spark timing based on curves which are mapped .Which is why there are economy and power modes in f2 and other bikes which is nothing but 2 curves mapped ,one for economy and another for power.So the rev limiter doesn't act based on the current generated.

okay..
thanks for correcting me.

i will read the entire thing in detail and let you know whatever i come across.

secondly I'll even ask my auto electrician about it...

watch this space for updates...

Fiero classic full DC

All the electrical circuits are getting a Direct Current

In bikes only source of power is Battery and pulling out juice from your battery & still keeping it in good health is no simple job, though its not difficult also .

I had been thinking of getting my bike converted to DC since the time Karizma was launched and all the mechanics were like "Bina bike chalu kiye light chalu hoti hai"(Without starting the bike, the lights work). It made me wonder how this could be done as it would drain the battery & also there is no alternator like the car, later learnt it has a magnet & a coil to generate the power needed to charge the battery.

Slowly and steadily I started to search on the internet if such thing could be done.I enquired with my trusted auto electrician & he said "you just need to connect the headlight to the battery & thats it", but somewhere I had read that it will run fine for couple of days & then drain the battery. He would not understand this, so I just plonked an aux lamp and made it run through the battery.Two days it ran fine because battery was fully charged,but after that battery started to show signs of draining(horn, indicators not working to the fullest). Showed it to the guy and disconnected it.

Years passed by nobody knew anything about this. Not auto electrician would have any idea about converting a bike to DC. I stumbled upon this site while searching on google about everything related to bikes.Saw this Fiero ownership thread and started posting queries related to engine, spares, can this be done or no & what not. I read a thread posted by Abhijeet that he has converted his Pulsar to full Dc and he has put LEDs,battery is charging & everything is running fine. He had made a circuit & rerouted the wires & all the electrical stuff. But me not knowing of anything related to electricals thought its better to be avoided(Leave the bike on current config AC DC).He also said you need to do coil rewinding and it has to be done through someone knowing about it. But I could not find 1 rewinding workshop in Mumbai who would do this for me. Had heard Ruby Electricals, Bangalore do it. "But who will take the coils to Bangalore & bike will be standing still till they come back & what will happen if something goes wrong". All sorts of questions arising in my mind.

After some months, there was query put up by NANOtech, that he has some leaking problems & needs to get his spares changed, so could anybody recommend a good mech. I immediately sent a message & he was ready to come down to south Mumbai all the way from Bhandup. From this date our interaction started and it is still going on and on and on. Next thing he posted was "He has converted his Fiero to DC". I was like . I immediately replied,how did he get the coils rewinded & wiring & all that stuff. I was quite eager to meet him and see this for myself. The day finally cam when I met NANOtech who was currently on a HID & HALO setup, it was a deadly combo.Not wasting much time, I started enquiring with him how did he do it? & he calmly said it easy man dont worry I will help you in this . But due to the rains I could not open up the bike and it was delayed by 15-20 days.

Finally this sunday 08-Aug-10 we met & went to the coil rewinding guy. Got the coil rewinded to a 19 gauge wire with 12 feet per pole. Put an Ape RR, rerouted the headlight wires & voila my bike is now Full DC. No light flickering and the brightness of the bulb to the fullest.

Now somethings we noted while we were getting the coil rewinded. Classic Fiero does not have a stator coil.

I am herewith attaching the pictures to have a better idea.

Classic Fiero coil without rewinding. See that empty spot between the two coils??



Fiero FX coil after rewinding. You will be able to see the stator coil



Did not take the pictures of the classic coil's pictures as hands were quite dirty. It looks similar to the FX coil just that the stator coil is missing.

Ape RR



The grey wires need to be connected to the wires from the coil. Yellow wire to battery +ve and black to battery -ve.

Its just two days since I have had the setup. It is running fine till date. But I think there is some problem with the charging,because the horn is going weak when I switch on the lights. Need to figure this out this weekend & check the voltage readings.

I would again like to thank our dear friend NANOtechnology for helping me in getting this done.

Will keep you guys updated.

PS. Sorry for the long post.


Mods if you feel anything is irrelevant, kindly delete the same.

No hurry man ,take your time.I am not in any kinda hurry to get it done.Anyway the mech who used to work at ZEN TVS has done it before and says its no big deal.What i wanted was some info about it before hand.I'll think about it once the jetting is sorted out to an extent.Thanks for everything.
Anand

@ imjoshee

dude,,
relax your problem is sorted out by now isn't it..
by the way STATOR is the thing where you wind the coil.
those 7 legs are stator.

that yellow thing is STARTER used for spark plugs..

@ anand..

dude, i inquired about fitting rtr's cdi to the fiero's coil.
my auto electrician said its very much possible.
in fact the good part is that you don't need to change anything in the coil.
keep the stock coil, the stock wires which lead to the cdi, the difference will be that YOU will need to KNOW which wire should go where !!!

i know it sounds stupid but he said that its not plug and play, he can do it in a flash, any good auto electrician who has an experience about it will know how to do it...

i repeat..
NOTHING has to be changed in the coil.
just change the cdi, find the wires...

Yaar Gagandeep
Are you talking about the ignition coil which comes before the plug?I am sure that coil needs to be replaced with a high resistance one of the TCI.
Well coming back to the bike .I had faced a jerking problem at bit over 90 kmph and it was felt at higher revs in all the gears.The thing is i had all along thought it was something to do with the jettting and had kept it for another time to be sorted .Today it turned out to be nothing more than a faulty plug adapter.So the bike's jetting is done for the time being .Until that is i go for a bigger carb or the TCI set up.But the carb blow out issue is still there .
Anand

which coil are you talking about, the one which goes to the spark plug??

see this is the apache's stator coil.




and this is our very own classic fiero one.





now if we talk about fiero f2 and fx, this is f2/fx's coil.




you'll notice that Yellow thing in f2/fx
it is meant for SPARK plug.

if you install an apache's tci, i don't think its pretty much difficult.
as both of your coils are working exactly same, both don't have that yellow thing...

now that's what my mech said.
you can opt for apache's wiring which leaves the stator, which will include pulse generator of apache's itself.
it will be plug and play then...

which wire goes where, can be found out if you see both the coils in hand, in flesh..

isn't it ??

that's what i am trying to say.
correct me if i am wrong, or i misunderstood something.

Got it ,thanks man .Yeah that is helpful .Yeah that is what i was asking for, as i knew that the ignition coil which comes before the plug needs to be changed along with the digital tci unit.So nothing else needs changing.
Anand

exactly my friend.
nothing needs changing..
go for wiring harness (stator one's) of oem apache.
de-solder current wires, solder new wires.. on your stator.
i suggest to make it all DC, single phase.
and you are done....

let us know with pics what you did, if you do so.

Thanks yaar,if i decide to get it done ,then i'll definitely let you know about it before hand.

guys my f2 is having some chain problems!!
today i went out in the eve wit a friend, while returning home there was some kind of noise coming out from the chain guard!!!

do u guys face such problems?? i mean i have faced such probs a lot of times. i simply take the bike to my ASS mech, tell him the noise prob from the chain and he fixes the prob with some minor adjustments to the aliignment of the rear wheel by loosening some nuts. i face these type of probs atlest once a yr.. i have heard that fiero bikes have a lot of chain issues. the noise is more like the chain rubbing against the inner side of the chain guard!!

i wanted to know the exact reason. and can a local mechanic be able to fix this prob?? from 2morow the service center is gonna be closed till tuesday, and i have to attend college from monday onwards again. the more i ride the bike the more the noise increases!!