Hello,

Does anyone know how close the throttle locations are on a YS .110 and an OS .91 Surpass four stroke? Are the throttle locations on the same side of the engine?

What about the throttle locations of an OS .91 2 stroke and the OS.91 four stroke?

Lastly, does anyone know if the engine length (back to front of the shaft) is similar or the same on all these engines?

Thanks a lot!

Jason

Most of the exterior and mounting dimensions are the same on a OS 91 Surpass and a Y-S 110.

The throttle arm on the Y-S and the OS 91 are very close if you have the on of the OS on the same side as the Y-S.

The two stroke engines have the throttle arm on the right front of the engine.

Enjoy,

Jim

Thanks. I have an OS 91 4S on a plane now and want to change it out for either the YS110 or OS 91 2S, thats why I would like to know where the throttle locations are. It'd be a lot easier if I dont have to move the linkage.

Thanks again, I appreicate it!

Jason

The OS 91 Surpass can have the throttle arm on either side. The 110 can only be on the right side.

Enjoy,

Jim

Thank you.