TheEdge

My Feedback: (788)

This is totally a novice question relative to rear carburated gassers and the adjustments for tuning.

How do you do it ?
It looks to me as if in many cases a hole is generally needed in the firewall to allow the carb to position.

If the carb is inside the fuse, how the dickens do you tweek it ?

Diablo-RCU

My Feedback: (1)

Small hole on top of cowl works great on a H9 Cap with ZDZ-80.
Mostly ya set it.....and forget it.

NM2K

My Feedback: (14)

"Tweaking" a gas engine is a bit different than doing it for a glow engine. The gas engine should be stopped, readjusted and then restarted. Yeah, I know, a real PITA, but look at the bright side, once adjusted properly, you will seldom have to adjust it again.

All two-strokes are tuned one of two ways. Either under load (the best way), or best guess.

If you adjust a two-stroke airplane engine on the ground, that is meant to fly, it is a best guess, whether the engine is running or not. I haven't figured out how to adjust it under load yet.

TheEdge

My Feedback: (788)

I am not missing anything after all. I thought there was a slick idea I was missing. Maybe the orientation of the adjustment screws allowed side access.

I am not new to gas, but new to rear carb. I have experience with the adjustments. It makes it much easier when it isn't on a bipe and the access has to be through the lower wing saddle

Cheers