FZRSupport: the FZROnline Archive

what does this mod do exactly??
how does moving a sensor that charges the battery advance the ignition any?
Is there a How-To thread made for doing this mod?

The sensor doesn't charge the battery, the stator does. What i was talking about is the pick-up coil. It reads the marks on the flywheel ala crank position sensor. CDI uses this to know when to fire the plugs, thus if you move the sensor to the left, it will fool the cdi....resulting in advanced ignition.

An ignition advancer for our bikes is, i believe, just a offset woodruf key for the flywheel.
I know there's a how-to somewhere....give me a few minutes to find it.

yes, but what does "advancing" the ignition do?

You initiate the combustion within the cylinders earlier. Doing this will increase the cylinder pressure, thus providing more force to push the piston back down. You usually want to run higher octane fuel to prevent detonation when advancing.

1000cc fzr has no plate to adjust.
We have crank pickup and generator system.
Advanced timing ignites fuel earlier.
The higher the octaine the longer or slower the burn time.
I found with dyno runs that as soon as i got over 30%avation fuel and 96octaine my horsepower reduced.
This is because the bang was still happening at allmost the bottm of the piston stroke therefore now getting any more push on peston.
Low octaine fuel burns hotter and faster but not for as long giving less total push on the piston.
Advancing timing will let you run high octaine and increase horses as long as you have high compression also
if you have less than 12/1 dont bother at all trying
Vance and Hyndes system retards ignition by 358degr in order to advance 2degr
This is how i understand there unit works.
please advise if i am incorrect

Cheers Steve

im am terriffied of detination...this mods sounds scary now...not sure if I would do it...

I've never heard anything but good things from the factory pro ignition advancer. Just don't pump the 87 anymore.

i pump unleaded regular...
what will i need? premium?

Im sure you could get away with that, but better safe than sorry. I only pump 91/92+ in my fzr.

Our fuel options are 91 96 98
My 1000 runs best on 96
or 91 70% and avation fuel 30%
I would like 4degre advance and run 96 50% and avation fuel 50%

ok, so i would have to special order fuel to run a ignition advancer?
gas stations have 3 options
-regular
-premium
-desiel...

You dont need to special order fuel. What octane level is the premium?

What sort of mods are you allowed in your class? I'm surprised you're bothering to blend pump & av gas. Playing games with timing and compression, you could get to the point where you're using actual race gas - VP7 and the like.

If you're running a full-on race bike, you may want to give serious consideration to an Ignitech programmable TCI - the SR3 is the high-speed / low drag version, ~ 210 Euros shipped. Give you a lot more control than a stock black box and a slotted pick-up coil / FP advancer key.

DonTZ125 wrote:What sort of mods are you allowed in your class? I'm surprised you're bothering to blend pump & av gas. Playing games with timing and compression, you could get to the point where you're using actual race gas - VP7 and the like.

If you're running a full-on race bike, you may want to give serious consideration to an Ignitech programmable TCI - the SR3 is the high-speed / low drag version, ~ 210 Euros shipped. Give you a lot more control than a stock black box and a slotted pick-up coil / FP advancer key.

I was under impression ignitech is multi spark but cant advance timing because it relies on black box signal to initiate spark then refires as a pulse.
I just cant see how that is advancing timing instead of just improving bang by better maintained spark.
We have a rule that goes like this.
major components must be stock(Eg carbs)or have been used on your model prior to and including 1989 or faithfull replica.
So vance and hynds allowed.Ignitech possibly not allowed.
Head work allowed using stock head.Porting ,cams , and skimming ok etc.
Boring existing jugs and resleaving ok.1070 wiseco ok etc
Replacing jugs with mega kits not allowed
Pre 89 class ...
Fuel restrictions are four stroke limited to pump gas.Aviation fuel is avalible from sellected service stations and airport pumps if you have race licence.
Cant be added to vehicle driven into service station but fuel cans or vehicle on trailer(unregistered,not road legal)is ok.
Two stroke restricted to 98octaine max,Super petrol that we put in cars etc.
Your race gas is not avalible from pumps here.
Pre 82 rules same but methonol allowed as well for 4 strokes.

Aviation fuel has the slowest burn time,runs cooler but more grunt.Problem is the higher the octaine the more advanced your vehicle needs to be to get this advantage.Low compression engines do not respond to high octaine.Eg my Bonneville is 9.3 to 1(approx) and runs best on 91pump gas.

The 30% aviation and 70% 96octaine is 1hp better than 96 octaine on my bike.
50/50 mix is same as pump gas 100%
Higher percentages get me even lower horsepower.This is because of none adjustable ignition timing.2degree advance would let me run 50/50 and maybe gain 1 more horsepower.
The 600 fzr has plate and loator kits avaliable.

The penilty for fitting a major component that was not avaliable(time period)is loss of all championship points.
Rulling is it is up to the rider to provide proof that the modification was avalible
All electrical components including harness is classed major component.
Any part that can be plugged into jacks and time period allowed.
Anything that requires altered harness jacks is no allowed.
You can remove wires and jacks from the harness but you cant add
Stripping the harness is alowed.Replicating the harness in race form is allowed.Differnt style jack additions is not.Eg powercomanderIII no go(example only)



Cheers Steve
The 1000 has no adjustments due to generator crank pick up system.