Starts in 2 revolutions of the crankshaft

[Mute]

Tonight, because i had nothing better to do, well except finish the living room DIY, replace the sealant round the bath etc. etc.  but nothing "better" to do  I skived off to play with my new AC DC current clamp. Testing AC was easy but testing something meaty and DC, only thing i could come up with was a starter motor.

The s1000xr is the fastest starting engine i've seen. Feels like it's almost instantaneous when you hit the starter button. I measured how many rotations of the crankshaft it takes to catch.

2 rotations 



I clearly canny work my chinese scope so the screenshot turned out to be of a clipped view! The peak inrush current was 400amps. The 4 spikes at 5.5secs are each cylinder's compression stroke. The ghosty spike at 2.5secs is the fuel pump - 125amps inrush seems high to me but around 6amps running at 3 secs seems fair.

Anyway,   

[Troppo]

That's impressive.  It does catch quick, that's for sure...

[Flashman]

  Love it!

[mahseve33]

Certainly quicker than the oil can get back into the camchain.

[RichS1000XR]

Wow, you really were bored!

[Troppo]

Originally Posted by mahseve33

Certainly quicker than the oil can get back into the camchain.

Hahahahahah.  Oh dear....