Using attenuator to measure ignition voltage

[mini998]

I built an attenuator for my oscilloscope for my USB oscilloscope FOSC 52A .
Oscilloscope only measures up to 800mv, so I made an attenuator with a variable resistor So I can change attenuation ratio.

I used a 1M Ohm (5W) resistor between core terminals and 10K potentiometer between core and outer .

So the attenuation ratio starts from 100x and goes upwards.SO voltage wise it starts from 80v and goes to infinity.

Question.

Can I hook my oscilloscope to oscilloscope to Ignition voltage with this setup?

Thanks in advance.

[Meat-Head]

Can I hook my oscilloscope to oscilloscope to Ignition voltage with this setup?

Thanks in advance.

That's like saying "Can i stick my willy in the mains socket - and not get a shock"

Moderern cars are nasty on ign - vauxhall are very nasty.

points and condeser, 125 volts across coil, 50,000 on ht.

would not even think about it, unless you can find an old telephone, moden etc, rip out the 'optical couplers' then go play with yourself