Here we go again. I recently purchased an evolution 45gx2. Long story short, wouldnt run, they sent me a new one.

The new one fired on teh 2nd flip, right out of the box. I ran a tank through it exactly like the book said. 2nd tank, fired right up. Another tank through. Let it cool, then a third tank.. started right up.

Now, the 3rd day to run it, i was going to run one more tank through it before i fly tomorrow. It wont fire.

Nothing has changed. The motor is getting gas. Seems like the plug isnt getting fire. I checked it grounded to the motor, no spark. The battery is fully charged at 7.4 vlts.

I reprogrammed the auto choke, works fine, just no spark.

Any suggestions?

I WOULD LOOK AT YOUR SWITCH OR WIRE TO INGNITION

Tiger,
If the auto choke works and the battery is fully charged, it looks like an ignition unit internal failure. Try a differnt battery and switch if possible. Did the first engine have a spark?

Dave

I think the switch is fine. I know its getting power because the ignition powers the choke servo, which is working.

Yes, the first engine had spark, just no rpm.

Like i said, this engine ran fine, then overnight it decides not to run again. I have no idea whats up.