You will have to find the pickups that will work with the ignition you wish to adapt unless you are willing to try the OEM pickup but realize the OEM pickup only has 28* is that not the one of the parts you wish to change. You will have to mount the crank fired pick up near the crank with a machined reluctor wheel to charge the pickup. Take a look at other ignitions to see what is required then determine if you can do it. Take a look at a system called Direct Ignition it is a HPX system for a 4 cylinder car then look at the 60 tooth reluctor wheel and a chisel type pickup. If you can mount this to your machine then you are to the races!!!!

 

so my ignitior is what gives me my timing of 28* not the programmer. if so is that because of the location on the crank ignitor because the ignitor is just a switch or am i wrong ? when crank turns it completes a circuit and fires the programmer which fires the spark plug. correct ?

 

The CDi ( igniter ) holds back the information the pickup relays to the cdi . The pickup is always timed at 28* no matter the rpm, it is the job of the cdi to let a charge go to the coils at a timed sequence just like the weights on a distributor. The cdi replaces what normally the distributor would do only through a programmed process.

 

so are pick up is installed on are crank at top dead center and the cdi waits till are crank is at 270* before it fires or am i way off ?

 

Allow me to try to help....
(this maybe a poor diagram, but i will try)


Here is one crankshaft revolution (360°), and the signal seen at the pickup:
................~60 deg..............~30........~60 deg........................(360-60-30-60=210°)...............repeat
-------| timing window rear |------| timing window front |----------------------------------------------| t.w.r.|

Does this look right, alltoys?

 

Schl48,
Front cylinder - intake cams operate at 30* before top deadcentre (BTD) allow for fuel mixture to enter cylinder.
- ( at idle ) spark fires at 10* BTD, piston topes its stroke = 0* ( 0* point of reference (start))

Rear cylinder - Intake cams operate at 30* BTD (240* from 0* or piston tops its stroke on the front cylinder ) allow for fuel mixture to enter cylinder. Spark fires on the rear cylinder at 250* from 0* on the
front cylinder or 10* BTD. Piston on the rear cylinder tops out at 270* from 0* top dead centre
on the front cylinder.


This is for intake valve and spark timing, exhaust is different again does this help.

Brilliantbloke,
Looks good to me.

 

Can't we just buy and adjustable CDI from someone like Duncan Rading?

 

Kwacker,
We will have to wait till it is out January is the time of release so 4 stroke tech has said. It is a Vortex system will have to wait to see if it is adjustable.

 

got it alltoys (i think). i'm still researching but i think without a dought the hpx is the one. i will probably call them after i can get in the city and get the quad apart to look at how much room i got to install the pickup. i wish they gave dimentions on there site, the wheels are 2 and a half in. from what i read. all i guess i would like to know is how big is the chisel pick up. thanks a ton