"Lumpy" idle 750EVIL

[MiloFrance]

So apart from turning off the decompression before the choke at the start of the video, I wondered if you think this is normal idle for a slightly bigger 2 stroke than I'm used to. Sounds very lumpy and at the moment it 'lumps' you can see the saw jump a little. Running fresh 1:50 no ethanol with Stihl blue oil.
The video or youtube link if it works

 

[Hoggwood]

So apart from turning off the decompression before the choke at the start of the video, I wondered if you think this is normal idle for a slightly bigger 2 stroke than I'm used to. Sounds very lumpy and at the moment it 'lumps' you can see the saw jump a little. Running fresh 1:50 no ethanol with Stihl blue oil.
The video or youtube link if it works

That is how they idle. They lope along. I would turn up the idle a tad so it smooths out a bit. Great line of saws. Very high compression. Generally bulletproof and very well made. Lots of torque.

 

[MiloFrance]

Heavy though! Is the 1:50 I'm using ok? I've been looking through some threads and some are saying older echos used 1:16, 1:25 etc. Oils have come a long way I think

 

[Conquistador3]

Yes, those old Echo's do weigh a lot. And yes, if you are using a modern two stroke oil you can use 1:50 premix. Tested long term in a CS-351VL, so don't worry.

 

[Ozhoo]

She's an old gal that can still dance. Raise the idle till the chains just starts to spin then back it down till it doesn't.