Hi guys, looking for some advice here, I've just come back from the field, with a 35S that won't stay running and fistfuls of hair in my hands.
It's an unknown origin motor, but seems to have very little time on it, enough to tan up the internals, but that's about it, it's nice and smooth with pretty snappy compression. Venturi is stock, and is running a 703 muffler. Tank is a 4oz plastic type set to unfilow and suction.
Fuel is 20% castor, 5% synthetic, 7% nitro. Prop is a wood 10x5.
I can get it to happily 4 stroke all day long with the glow driver attached, but once I unclip, I have 3-4 seconds, and then shut down. Doesn't matter what plug I use, I've tried a thunderbolt long RC, OS 8 OS 7, OS LC3, Enya 3, and they all do the same thing, without fail.
I am at a loss.
What's going on here? What should I be looking for?