Z250SL full computer setup continued

When setting up the ARACER, it is essential to use a wideband O2 sensor to get as close as possible to the ideal air-fuel ratio.

From there we move on to a setup to make it go faster.

However, it seems that the O2 sensor was broken and I realized that the data I had collected up until now was unusable.

I also removed the strainer from the air cleaner box, hoping it would help things, but that also seemed to be causing problems.

It seems that the symptom was that the flow rate at low speeds was unstable.

I knew that nothing good would come from removing this, but I removed it because I thought the amount of intake would be insufficient.

I decided that this must be the problem causing the slow speed that I couldn’t fix no matter what I did, so I reverted it to its original state.

While I was at it, I also installed new plugs and a plasma booster to strengthen the ignition.

Better ignition means stronger low and medium speeds.

The wideband O2 sensor is scheduled to arrive today, so I would like to create the basic map today and have it ready by the weekend.

The suspension setup is in pretty good condition, so now it’s up to the engine…if it can handle the current long revolutions with ease.

It should be a good machine. I’ll do my best.