YZ 426 with WR stator timing question

i have an 02' YZ and installing WR stator and flywheel for lighting,is the ignition timing going to be the same or is the WR timing different? one more question about compression...are the 13.5 pistons a significat increase?should i stay with stock? . building this bike for woods. THANX

i have an 02' YZ and installing WR stator and flywheel for lighting,is the ignition timing going to be the same or is the WR timing different? one more question about compression...are the 13.5 pistons a significat increase?should i stay with stock? . building this bike for woods. THANX

Are you switching to a WR wiring harness and CDI?

The YZ and WR have different timing. Timing is controlled by the CDI. If you are switching to a WR CDI you can change it back to the YZ ignition map by cutting (or not attaching) the grey wire.

Is that what you were asking?

Are you switching to a WR wiring harness and CDI?

The YZ and WR have different timing. Timing is controlled by the CDI. If you are switching to a WR CDI you can change it back to the YZ ignition map by cutting (or not attaching) the grey wire.

Is that what you were asking?

yes,im only changing the stator and flywheel.cutting the wire is what i was told to do....thanx :busted:
yes,im only changing the stator and flywheel.cutting the wire is what i was told to do....thanx :busted:

if you're not changing the CDI and wiring harness then you don't have to do anything. There is no grey wire on the YZ and you CDI will keep your YZ timing.

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