Re: Big aircooled Suzuki map
Posted: Tue Dec 18, 2018 1:17 pm
Righty..
Coils..
My racebikes (1999 GSXR600)use pencil type coils that are capacitive (I think).
They are constantly earthed and fed with a pulsed feed to trigger them.
However, Yamaha R6's use inductive pencil coils, whereby they are feed a constant 12v and the switching is done by earthing the other side which as far as I can work out is how the S40 works (CDI ?)
So convention may suggest that if each one has a primary resistance of around 1 - 1.2 ohms, then a pair wired in series should give a similar primary resistance to the coils that I am already using ?
I have no idea about inductance / capacitance, though so I may be a mile out here but I thought it was worth mentioning.
Nowthen.. Idle control.
I hadnt actually looked into this as I have a handy fast idle lever on my throttle bodies but I thought I would give it a bash,
With no success whatsoever.. lol
So, to put you in the picture, I have one injector per cylinder, one set of butterfly valves that are connected to the throttle cable.
No air bypass valve or any other gubbins.
No matter what values I put into the idle control tables I get no target rpm reading on the idle 14x20 advance map.
Bit stumped with that one to be honest.
Also some of my values in the main idle control box are red and will not turn black.
Weird.
Coils..
My racebikes (1999 GSXR600)use pencil type coils that are capacitive (I think).
They are constantly earthed and fed with a pulsed feed to trigger them.
However, Yamaha R6's use inductive pencil coils, whereby they are feed a constant 12v and the switching is done by earthing the other side which as far as I can work out is how the S40 works (CDI ?)
So convention may suggest that if each one has a primary resistance of around 1 - 1.2 ohms, then a pair wired in series should give a similar primary resistance to the coils that I am already using ?
I have no idea about inductance / capacitance, though so I may be a mile out here but I thought it was worth mentioning.
Nowthen.. Idle control.
I hadnt actually looked into this as I have a handy fast idle lever on my throttle bodies but I thought I would give it a bash,
With no success whatsoever.. lol
So, to put you in the picture, I have one injector per cylinder, one set of butterfly valves that are connected to the throttle cable.
No air bypass valve or any other gubbins.
No matter what values I put into the idle control tables I get no target rpm reading on the idle 14x20 advance map.
Bit stumped with that one to be honest.
Also some of my values in the main idle control box are red and will not turn black.
Weird.